OPINION
MANSFIELD, Judge.An El Paso County jury found appellant, Steven Brian Alvarado, guilty of two counts of capital murder, to wit: the September 22, 1991, murders of Refugio Carmen Sustaita and her adult son, Manuel Sustaita.1 At the punishment stage of appellant’s trial, the jury answered affirmatively, as to each count, the special issues submitted to it under Article 37.071, § 2(b),2 and it answered negatively, as to each count, the special issue submitted to it under Article 37.071, § 2(e).3 The *204trial court then sentenced appellant to death on each count. Direct appeal to this Court was automatic. See Article 37.071, § 2(h). We will affirm the judgments of the trial court.
Appellant argues fourteen points of error in his brief on appeal. We will address his evidentiary insufficiency points of error first and then address his remaining points in chronological order.
In point of error number seven, appellant contends that, with respect to his conviction for the murder of Carmen Sustaita, he has been denied his liberty without due process of law, as guaranteed by the Fourteenth Amendment to the United States Constitution, because the evidence adduced at his trial was insufficient “to connect [him] to the death of Carmen Sustaita, either as the primary actor or as a party.” The State responds that “the evidence is sufficient to show appellant guilty as the primary actor in the murder of Manuel Sustaita, and [from his] killing [of] that victim, the one who could best defend the two victims, the jury could conclude that appellant was guilty as a party to the murder of Carmen Sustaita.”
Count two of the indictment charged appellant with “intentionally causing] the death of ... Refugio Carmen Sustaita in the course of committing and attempting to commit the offense of robbery.” The jury charge at the guilt/innocence stage of trial authorized the jury to find appellant guilty of the capital murder of Carmen Sustaita either alone or as a party.4 The key prosecution evidence5 at the guilt/innocence stage of trial was as follows:
Martha Reyna testified that she had been a neighbor of Carmen and Manuel Sustaita on Wilshire Street in El Paso. She testified further that on September 23, 1991, she received a telephone call from Blanca Sustaita, who had tried without success to contact Carmen. At Blanca’s urging, Reyna walked to the Sustaita residence and knocked on the door. There was no answer, so Reyna peered through the windows of the residence to determine whether anyone was at home. She saw Carmen’s motionless body through a bedroom window and telephoned the police.
El Paso Police Officer Ernest Wade testified that police officers found Carmen and Manuel Sustaita’s bodies at 10301 Wilshire Street in El Paso on September 23, 1991. According to Wade, the residence “appeared as [though] it had been ransacked,” and “three different sets of ... bloody shoe prints” were seen leading away from the residence.
El Paso Police Officer Dale Fernandez testified that Manuel Sustaita’s body was found *205just inside the entrance to the Sustaita residence. He also testified that a baggie of marihuana was found on Manuel Sustaita’s person.
Blanca Sustaita testified that she was Carmen Sustaita’s daughter and Manuel Sustai-ta’s sister, and that she knew before their deaths that they were selling marihuana and cocaine out of their residence at 10301 Wil-shire Street in El Paso.
Norma Nieto testified that she, too, was a daughter of Carmen Sustaita and a sister of Manuel Sustaita, and that she visited them at their residence on September 22, 1991. She testified further that she saw Manuel and appellant arguing at the Sustaita residence around 8:00 or 4:00 p.m. on that day.
Joshua Salcido testified that late on the evening of September 22, 1991, he went to David Cameron’s residence in El Paso to visit Cameron. When Salcido arrived at the residence, he saw appellant, Cameron, and Augustin “Augie” Avila preparing to leave. They soon did leave, but Salcido remained behind to watch television. Appellant, Cameron, and Avila returned to the Cameron residence about 45 minutes later, covered with blood. They carried with them a small duffel bag containing three kitchen knives, a small quantity of marihuana and cocaine, and $80 in cash. The cocaine was divided among the four of them. While the cocaine was being divided, Avila, who was trembling, stated that he, Cameron, and appellant had “just took somebody out.” Salcido then asked to whom Avila was referring, and Cameron, who was also trembling, responded that it had been “Manny and his mom.” Appellant then said, “It felt fucking good.” Salcido testified further that Cameron, Avila, and appellant placed their bloody clothes and knives into a white plastic trash bag, and that later that night, after a cousin of Salcido arrived at the Cameron residence, they all rode in a car to Transmountain Road, where they dumped the trash bag.
Chris Carillo testified that late on the evening of September 22,1991, he drove his ear to the Cameron residence in response to a telephone call from his cousin, Joshua Salci-do. After Carillo arrived at the residence, appellant, Salcido, and Cameron got into Carillo’s car and all four “cruised around” El Paso, eventually finding their way to Trans-mountain Road, where they threw a bag off the side of the road. Later that night, while the four were still driving around, either Cameron or appellant stated that they had “fucked some people up” — which Carillo interpreted to mean they had killed some people — because an unnamed woman had cheated them in a drug deal.
El Paso Police Detective Joe Laredo testified that a police search of the area adjacent to Transmountain Road in late September 1991 turned up a plastic bag, some clothing, a box of baggies, and two kitchen knives.
Betty Ann Cranford testified that she was David Cameron’s mother and that on September 25,1991, she noticed that two kitchen knives were missing from the Cameron residence. She testified further that the knives found by police off Transmountain Road were identical to the knives that were missing from her home.
El Paso Police Detective Alfonso Marquez testified that on September 24, 1991, he and several police officers arrested appellant at a residence in El Paso for the murders of the Sustaitas. The officers apprehended appellant as he was attempting to flee out the back door of the residence. Appellant had several open wounds on both of his hands.
El Paso Police Detective Antonio Leyba testified that appellant gave a statement, which was reduced to written form, after he was arrested. The statement (State’s exhibit number 126)6 read, in relevant part, as follows:
... I am 17 years of age. I am high school drop out. I last attended the 9th grade at Andress High School. At this time I am in the Crimes Against Persons office where I am under arrest for 2 counts of Capital Murder dealing with the murder of a friend of mine Manny whose last name I don’t know and his mother who I also *206don’t know her name.... I met Manny a short while ago I don’t remember exactly when and I also don’t remember when I found out that he dealt drugs.
On Sunday night Sept. 22, 1991 David I don’t know his last name and Auggie I don’t know his last name either decided to go to Manny’s house to pay him some money that I owed him from a previous drug deal. All 3 of us went to Manny’s house to pay him the money and I was going to make another purchase. I don’t remember who knocked on the door. Manny answered the door and he let all 3 of us in. I then gave him the money for the previous deal. Manny then started to complain that the money wasn’t the right amount. Manny told me This isn’t the right amount of money. I then told him fuck you that is the amount that I always pay. I then gave him the money to the other purchase. Rather I gave him the money all at once. Manny then said I’m going to keep all of your money. I then told him no man fuck you just give me my money. Manny then said no I’m going to fuck you up. Manny then pulled out a knife from the back of his waist. He then proceeded to come towards me with the weapon. I defended myself by using his own weapon against him. He cut his own throat. I then got the knife away from him and I started to stab him. I don’t remember how many times I stabbed him but I know that it was more than once. I don’t know what happened to the mother but I remember seeing her laying floor unconscious. All of us then started to look for the stuff. By stuff I mean anything worth of value that you can carry. I didn’t take anything because I didn’t find anything. I looked for the stuff just here and there. All 3 of us left the house and walked to David’s house. I know my way around but I don’t pay attention to the streets.
When we got to David’s house I then noticed that they had some stuff from Manny’s house. I believe that Auggie was the one who had it. We then washed up and took our clothes off because they had blood on them. We then just kicked back. Later a friend of our who I don’t know what his name is came over and picked up our stuff which was our clothes that had the blood on them. He then took with the clothes and David and I stayed there. I believe that Auggie went home. We stayed there until the guy who took our clothes came back. Then we went with him in his car. We just went cruising, Auggie was no longer with us when we were in the car. We stayed all night in the car.
On yesterday Tuesday afternoon I called my girlfriend Joelynn and told her that we were in a bit of a jam and asked her if we could stay there with her since we didn’t have a place to stay. She asked her mom then said that we could stay there. David and I then went to her house. I don’t remember her address. We stayed there until the police arrived placed us under arrest. I would like to say that Angel (Joelynn) nor her mom knew what was going on. The police took me to the station ... and then I decided to give this account of what happened on Sunday night at Mannys house. I want the record to show that I acted only in self defense.
I want to say that even though this are not my exact words it is an accurate account of what ... happened on Sept. 22, 1991 at Manny’s house.
/s/ Steve Alvarado
(Emphasis added; all errors in original.)
Finally, El Paso County Chief Medical Examiner Juan Contin testified that on September 24, 1991, he performed autopsies on the bodies of Carmen and Manuel Sustaita. He testified farther that Carmen’s body had sustained eighteen knife wounds, three of which had been fatal, and that Manuel’s body had sustained 34 knife wounds, seventeen of which had been fatal. He also testified that Manuel was a “well-nourished, muscular male that ... weighed 174 pounds,” and that Manuel’s neck wounds could not have been self-inflicted.
Consistent with the Fourteenth Amendment guarantee of due process of law, no person may be convicted of a criminal offense and denied his liberty unless his criminal responsibility for the offense is *207proved beyond a reasonable doubt. In re Winship, 397 U.S. 358, 364, 90 S.Ct. 1068, 1072-73, 25 L.Ed.2d 368 (1970). Our state statutory law has the same requirement. Tex.Penal Code § 2.01; Tex.Code Crim.Proc. art. 38.03. Because the jury is the sole judge of the weight and credibility of the evidence at a criminal trial, our task as an appellate court is to consider all the record evidence in the light most favorable to the jury’s verdict, and to determine whether, based on that evidence and all reasonable inferences therefrom, any rational jury could have found the defendant guilty beyond a reasonable doubt. Jackson v. Virginia, 443 U.S. 307, 319, 99 S.Ct. 2781, 2789, 61 L.Ed.2d 560 (1979). If, given all the evidence, a rational jury would necessarily entertain a reasonable doubt as to the defendant’s guilt, the due process guarantee requires that we reverse and order a judgment of acquittal. Narvaiz v. State, 840 S.W.2d 415, 423 (Tex.Crim.App. 1992), cert. denied, 507 U.S. 975, 113 S.Ct. 1422, 122 L.Ed.2d 791 (1993). Appellate judges are not factfinders, however; we may not re-evaluate the weight and credibility of the record evidence. Rather, we act only “as a final, due process safeguard ensuring ... the rationality of the factfinder.” Moreno v. State, 755 S.W.2d 866, 867 (Tex.Crim.App. 1988).
Based on the evidence at trial, a rational jury could have found beyond a reasonable doubt that: (1) on September 22, 1991, appellant, Cameron, and Avila armed themselves with kitchen knives and went to the Sustaita residence with the intent of killing the Sustaitas in retaliation for the Sustaitas’ cheating in a drug deal; (2) appellant, Cameron, and Avila did in fact kill the Sustaitas that night in the Sustaita residence; (3) appellant himself intentionally and unjustifiably killed Manuel; and (4) appellant, if he did not directly cause the death of Carmen Sustaita, was nonetheless criminally responsible for her death as a party because his killing of Manuel Sustaita was done in part to prevent Manuel from defending her. Thus, a.rational jury could have found that appellant committed an act (the killing of Manuel) with the intent to promote or assist the intentional killing of Carmen. See Martinez v. State, 763 S.W.2d 413, 420, n. 5 (Tex.Crim.App. 1988); Webb v. State, 760 S.W.2d 263, 268-269 (Tex.Crim.App.1988), cert. denied, 109 S.Ct. 3202 (1989); Tex.Penal Code § 7.02(a)(2). A rational jury, as the sole judge of the weight and credibility of the evidence, could have rejected appellant’s assertion in his written statement that he acted only in self-defense. We overrule point of error number seven.
In point of error number eight, appellant argues again that he has been denied his liberty without due process of law. Under this point, appellant contends that the evidence presented at the guilt/innocence stage was'insufficient to prove his guilt of capital murder under either count because “there [was] no evidence that [he] first formed the intent to rob, and then, in the course of that act, caused the death of another human being.”
In order for a murder to qualify as capital murder under § 19.03(a)(2), the killer’s intent to rob must be formed before or at the time of the murder. Robertson v. State, 871 S.W.2d 701, 705 (Tex.Crim.App. 1993), cert. denied, — U.S. -, 115 S.Ct. 155, 130 L.Ed.2d 94 (1994). Thus, “proof of a robbery committed as an afterthought and unrelated to a murder [will] not provide sufficient evidence of capital murder.” Moody v. State, 827 S.W.2d 875, 892 (Tex.Crim.App.), cert. denied, 506 U.S. 839, 113 S.Ct. 119, 121 L.Ed.2d 75 (1992). If there is evidence, however, from which the jury could rationally conclude beyond a reasonable doubt that the defendant formed the intent to obtain or maintain control of the victim’s property either before or during the commission of the murder, then the State has proven that the murder occurred in the course of robbery. Robertson v. State, 871 S.W.2d at 705. The jury may infer the requisite intent from the conduct of the defendant. Id.
Based on the evidence at trial, a rational jury could have found beyond a reasonable doubt that: (1) the Sustaitas sold illegal drugs to appellant on more than one occasion; (2) appellant believed they had cheated him on at least one such occasion; (3) on the night of September 22,1991, appellant, Cameron, and Avila armed themselves with *208knives and went to the Sustaita residence with the intent to kill the Sustaitas in retaliation for the cheating; and (4) immediately after the killings, appellant, Cameron, and Avila, without discussion, searched the Sus-taita residence for things to steal. From these findings, a rational jury could have further found beyond a reasonable doubt that, at or before the time of the killings, appellant formed the intent to obtain control of the Sustaitas’ property. We overrule point of error number eight.
In point of error number fourteen, appellant contends the evidence was insufficient to support the jury’s affirmative finding, as to each count, on the special issue concerning his future dangerousness. See footnote three, supra. At the punishment stage of trial, the key evidence relating to appellant’s future dangerousness was as follows:
El Paso Police Officer Morris Williams testified that on May 30, 1990, he responded to a call regarding a domestic disturbance at appellant’s residence in El Paso. When Williams arrived at the scene, appellant’s mother, who was distraught and covered with ketchup, told him that appellant had thrown the ketchup on her and had told her, “This is what you are going to look like after I cut you up.” Appellant’s mother then told Williams that appellant was in his bedroom. As Williams approached appellant’s bedroom, an arrow flew through the closed door of the bedroom and lodged in the opposite wall. Moments later, a second arrow penetrated the door, but it failed to pass completely through. Williams identified himself as a police officer through the closed door, but appellant threatened to kill anyone who approached. Williams eventually persuaded appellant to leave the bedroom. As appellant did so, Williams observed “daggers or swords” and a mace inside the bedroom. Williams also testified that appellant was “associated” with an El Paso street gang, that he had a reputation for carrying weapons, and that he had a bad reputation for being peaceable and law-abiding.
Connie Edgemon testified that she was a “psychological associate” at Big Spring State Hospital and that she examined appellant there in June 1990. Based on that examination and reports from her staff, she believed that appellant was “violent” and “dangerous,” and that he had a “full-blown antisocial personality disorder.” She also testified that appellant had “no concern for the rights of others,” and that he admitted selling illegal weapons, abusing and selling illegal drugs, sexually assaulting a woman, mutilating human infants in satanic rituals, and committing numerous other crimes. Edgemon testified further that appellant was discharged after twelve days at Big Spring “because the consulting psychiatrist and the chief clinical psychologist ... felt he was a danger to the other patients in the hospital and that he was not suffering from a mental illness that was treatable and, therefore, under the mental health code, had to be discharged by law.”
Richard Coons testified that he was a psychiatrist, that he had reviewed appellant’s medical and criminal records, and that he believed, based on those records, that appellant had an antisocial personality disorder. Coons described the disorder as “a type of personality that ... does acts against society on a repeated basis and essentially doesn’t have a conscience about it.” Coons also testified that attempts at treating the disorder in other patients had produced “very sparse” results.
El Paso County Deputy Sheriff Eduardo Chavez testified that during a search of appellant’s jail cell on November 21, 1992, he found three “shanks” hidden inside appellant’s mattress. Chavez explained that a “shank” was an “instrument which has been sharpened for the purpose [of] causing] serious bodily injury or death.”
Charles Selman Jr. testified that on December 12, 1992, he was an employee of the El Paso County Sheriffs Office, and that on that date he participated in a search of appellant’s jail cell. He testified further that the search turned up a fourth shank inside appellant’s mattress.
Finally, defense witness William Follett testified that he, too, was a psychiatrist, that he examined appellant in the summer of 1993, and that he believed appellant had an antisocial personality disorder as well as par*209anoid schizophrenia. He testified farther, however, that he believed there was a “good chance” that appellant’s antisocial tendencies could be alleviated with medication and therapy.
The State had the burden of proving beyond a reasonable doubt that the answer to the punishment issue on future dangerousness was “yes.” See footnote three, supra. Thus, the State had the burden of proving there was a probability that appellant, if allowed to live, would commit criminal acts of violence in the future, whether in or out of prison. Narvaiz v. State, 840 S.W.2d at 424. In its determination of the issue, the jury was entitled to accept or reject any or all the evidence at both the guilt/innocence and punishment stages of trial. Valdez v. State, 776 S.W.2d 162, 166-167 (Tex.Crim.App.1989), cert. denied, 495 U.S. 963, 110 S.Ct. 2575, 109 L.Ed.2d 757 (1990). As an appellate court, our task is to view all the evidence in the light most favorable to the jury’s affirmative answer, and then determine whether, based on that evidence and all reasonable inferences therefrom, any rational jury could have found beyond a reasonable doubt that the answer to the punishment issue was “yes.” Harris v. State, 738 S.W.2d 207, 225-226 (Tex.Crim.App.1986), cert. denied, 484 U.S. 872, 108 S.Ct. 207, 98 L.Ed.2d 158 (1987).
Utilizing the required standard of review, we must again reject appellant’s insufficiency claim. Shocking circumstances of the offense itself (including the number of people killed), habitual use of illegal drugs, and prior unadjudicated acts of violence against people and property are all evidence of future dangerousness. Narvaiz v. State, 840 S.W.2d at 425; Rosales v. State, 841 S.W.2d 368, 382 (Tex.Crim.App.1992), cert. denied, — U.S. -, 114 S.Ct. 393, 126 L.Ed.2d 341 (1993). In addition, a bad reputation for being peaceable and law-abiding, possession of weapons while incarcerated, and psychiatric testimony of a violent personality also constitute evidence of future dangerousness. Stoker v. State, 788 S.W.2d 1, 8 (Tex.Crim.App.1989), cert. denied, 498 U.S. 951, 111 S.Ct. 371, 112 L.Ed.2d 333 (1990); Livingston v. State, 739 S.W.2d 311, 340-341 (Tex.Crim.App.1987), cert. denied, 487 U.S. 1210, 108 S.Ct. 2858, 101 L.Ed.2d 895 (1988). Therefore, considering the record evidence as a whole, we conclude it was sufficient to support the jury’s affirmative finding, as to each count, on the first special issue.
Under this point of error, appellant also argues that the evidence “was insufficient ... to impose the death penalty” because of negligence on the part of the State. Appellant argues:
The State of Texas, the same governmental entity that now seeks to execute the appellant, failed in its original encounter with him [at Big Spring State Hospital] and, to remedy or justify or explain or simply hide away its failure, the State now seeks to dispose of the appellant — a horrific washing of its bureaucratic hands. Pseudo-experts like Ms. Edgemon were thoroughly dumbfounded and confused and even scared by the appellant, but rather than seek competent and more expert guidance and treatment, these caseworkers virtually shoved him out the door, placed him on an airplane to El Paso, and waited expectantly, hoping that he would kill, that he would butcher, that he would somehow land himself once again in the clutches of the State, but this time so they could kill him, not treat him.
We discern no reversible error. We have no basis for concluding that the State’s conduct with respect to appellant was actually negligent, even assuming arguendo such negligence could render “insufficient” the evidence supporting the jury’s findings on the special issues. We overrule point of error number 14.
In point of error number thirteen, appellant argues that the trial court erred in denying his challenges of veniremembers Magallanes, Driscoll, Reed, Puig, Bettin, and Sosa for cause under Article 35.16. Appellant complains that,
in carefully reviewing the types of questions and answers received from the [veniremembers], it is clear that [the] motions to strike for cause should have been granted, that the obvious bias or prejudice of the juror[s] was made a [sic] manifest *210early on in the examination, and only an eleventh-hour rehabilitation effort by the State gave them the appearance of neutrality.
Appellant does not explain the nature of the veniremembers’ supposed “obvious bias or prejudice,” however, other than to state in the abstract that “a prospective juror who cannot consider the full range of punishment is biased as a matter of law.” Appellant also does not cite the specific pages, if any, in the record where the veniremembers’ bias or prejudice was conclusively revealed; rather, appellant merely cites the entire record of the voir dire of each veniremember. Appellant also does not explain in any way why the State’s efforts at rehabilitation were inadequate.
Appellant’s point of error is inadequately briefed and presents nothing for our review. First, the point fails to cite the pages in the record where the alleged errors are shown. Narvaiz v. State, 840 S.W.2d at 429; Tex.R.App.Proc. 74(d) and 210(b). As an appellate court, it is not our task to pore through hundreds of pages of record in an attempt to verify an appellant’s claims. Second, the point does not explain why the State’s efforts at rehabilitation were inadequate. See Pierce v. State, 777 S.W.2d 399, 418 (Tex.Crim.App.1989) (appellant must state legal theory relied upon), cert. denied, 496 U.S. 912, 110 S.Ct. 2603, 110 L.Ed.2d 283 (1990); Tex.R.App.Proc. 74(f) and 210(b). Again, as an appellate court, it is not our task to speculate as to the nature of an appellant’s legal theory. In short, appellant has not complied substantially with our briefing rules. See Davis v. State, 817 S.W.2d 345, 346 (Tex.Crim.App.1991); Tex.R.App.Proc. 74(p) and 210(b). We remind appellant that the right to appellate review extends only to complaints made in accordance with our rules of appellate procedure. Foster v. State, 779 S.W.2d 845, 864 (Tex.Crim.App.1989), cert. denied, 110 S.Ct. 1505 (1990). We overrule point of error number thirteen.
In point of error number one, appellant argues that the trial court violated his Fourteenth Amendment right to due process of law when it denied his pretrial motion to suppress his written statement. Appellant argues that his statement was not given to the El Paso police voluntarily:
[I]t is clear that [when appellant gave his statement, he] was intoxicated and mumbling, and probably, as it was stated in the evidence [at the suppression hearing], “higher than a kite.” Obtaining a confession in a serious matter in this way, by filling in blanks in a computerized [statement] form, wholly misstating the date [on the form], and forcing a man who was obviously intoxicated and overborne by the whole process to submit to this process, is fundamentally wrong and renders any statement involuntary and inadmissible.
The State responds that “[t]he evidence [adduced at the suppression hearing] supports the trial court’s finding that appellant ... voluntarily ... gave a confession without being under the influence of intoxicants.”
The record reflects that the trial court conducted a suppression hearing before trial and that several witnesses, including appellant, testified. El Paso Police Officer Saul Medrano testified that he participated in the arrest of appellant at an El Paso residence on September 24, 1991. He testified further that, at the time of the arrest, he gave appellant the Miranda7 warnings, that appellant appeared to understand those warnings, and that appellant appeared intoxicated with alcohol but still “very coherent as to what was happening.” Medrano also testified that he transported appellant to the police station that night, that he remained with appellant throughout the interview process, that appellant was not stripped of his clothing or beaten or threatened or promised anything in return for his statement, and that appellant never requested a lawyer.
El Paso Police Detective Antonio Leyba testified that he interviewed appellant and took the statement in question from him at an El Paso police station late on the evening of September 24, 1991. Leyba testified further that he gave the Miranda warnings to appellant at the start of the interview, that appellant appeared to understand those warnings, that appellant was “coherent” and *211did not appear intoxicated at any time during the interview, that appellant was not threatened or otherwise coerced or promised anything in return for his statement, and that appellant never requested a lawyer. Leyba also testified that he typed appellant’s statement on a “fill-in-the-blank” form using a word processor, and that appellant’s statement was erroneously dated “April 26, 1989” because of a software error.
El Paso Detention Officer Lance Brown testified that when appellant was brought to the El Paso County Jail after his arrest, his eyes “looked weird” and his behavior “wasn’t normal.” Brown testified further, however, that appellant appeared to understand what was said to him and what was occurring around him.
Jolene Martinez8 testified that she was with appellant at the time of his arrest and that appellant was intoxicated with marihuana at that time. She also testified, however, that appellant understood what was said to him and what was happening around him.
Finally, appellant testified that he was intoxicated with marihuana at the time of his arrest and interview, and that because of the intoxication he did not fully understand what was said to him or what was happening around him. He testified further that, during the interview process, police officers attempted to intimidate him by cursing at him, stripping him to his underwear, striking him in the face with a boot, refusing his repeated requests for a lawyer, and forcing him to sit on a cold, steel desk. He also testified that the ofScers promised to “tell the judge to take it easy on [him]” if he would give a statement.
After the suppression hearing concluded, the trial court found, as matters of fact, that there was “nothing coercive in the way that the confession was taken,” that “[t]he statement ... was freely and voluntarily made,” that “[t]he defendant was not under a disability that rendered him incapable of waiving his rights,” and that “[t]he defendant did not invoke his right to an attorney from the time of arrest through the taking of the statement.”
Once a defendant moves to suppress a statement on the ground of “involuntariness,” the due process guarantee requires the trial court to hold a hearing on the admissibility of the statement outside the presence of the jury. Jackson v. Denno, 378 U.S. 368, 380, 84 S.Ct. 1774, 1782-83, 12 L.Ed.2d 908 (1964). Article 38.22, § 6 and Texas Rule of Criminal Evidence 104(c) have the same requirement. At the hearing, the trial court is the sole judge of the weight and credibility of the evidence, and the trial court’s finding may not be disturbed on appeal absent a clear abuse of discretion. Alvarado v. State, 853 S.W.2d 17, 23 (Tex.Crim. App.1993). The burden of proof at the hearing on admissibility9 is on the prosecution, which must prove by a preponderance of the evidence that the defendant’s statement was given voluntarily. Colorado v. Connelly, 479 U.S. 157, 169, 107 S.Ct. 515, 523, 93 L.Ed.2d 473 (1986) (citing Lego v. Twomey, 404 U.S. 477, 92 S.Ct. 619, 30 L.Ed.2d 618 (1972)).10 A statement is “involuntary,” for the purposes of federal due process, only if there was official, coercive conduct of such a nature that any statement obtained thereby was unlikely to have been the product of an essentially free and unconstrained choice by its maker. Alvarado v. State, 853 S.W.2d at 19, n. 4; Smith v. State, 779 S.W.2d 417, 427 (Tex.Crim.App.1989). “Absent [coercive] police conduct causally related to the confession, there is simply no basis for concluding that any state actor has deprived a criminal defendant of due process of law.” Colorado v. Connelly, 479 U.S. at 164, 107 S.Ct. at 520.
The record evidence supports the trial court’s finding that no official, coercive con*212duct occurred with respect to the taking of appellant’s statement. Therefore, we discern no abuse of discretion and overrule point of error number one.
In point of error number two, appellant argues that the trial court erred, at the guilt/innocence stage, in admitting State’s exhibits 39, 41, 43, 44, 46, and 47 over his objection based on Rule 403 of the Texas Rules of Criminal Evidence.11 Appellant argues that the exhibits (all photographs) were inadmissible because they were “shocking,” “prejudicial beyond any probative value,” and “needlessly] cumulative.” The State responds that the photographs were admissible because they merely depicted the gruesomeness of the crime scene as found by police. The record reflects that State’s exhibits 39, 41, 43, and 44 were all five-inch by eight-inch photographs showing knife wounds inflicted on the victims’ bodies, and that State’s exhibits 46 and 47 were five-inch by eight-inch photographs showing Carmen Sustaita’s entire body as it was found at the crime scene.
Once a defendant objects to photographic evidence on the ground its probative value is substantially outweighed by the danger of unfair prejudice, it is the task of the trial court to balance the probative value of the photographs against their potential for unfair prejudice. In accomplishing that task, the trial court must consider the inherent tendency, if any, that the photographic evidence has to encourage resolution of material issues on an improper emotional basis and then must balance that tendency, if any, against the host of factors affecting proba-tiveness, including the relative weight of the evidence and the degree to which its proponent might be disadvantaged without it. Narvaiz v. State, 840 S.W.2d at 429. The trial court’s decision may not be disturbed on appeal absent an abuse of discretion. Id.
Plainly, the photographs in question were probative of the State’s case at the guilt/innocence stage, because they helped prove that the victims were murdered in a deliberate, vicious knife attack. Thus, the photographs tended to prove that the crimes occurred as alleged in the indictment, and they tended to disprove appellant’s claim of self-defense. Equally plain, however, is the fact that, in the context of all the State’s evidence—which included much testimony regarding the crime scene and the victims’ wounds—the probative value of the photographs was less than it otherwise would have been.
On the other hand, the photographs were not so horrifying that a juror of normal sensitivity would necessarily have difficulty rationally deciding the critical issues of the case after viewing them. Therefore, we are not persuaded that a reasonable trial judge would necessarily find that the danger of unfair prejudice substantially outweighed the probative value of the photographs.
With respect to appellant’s claim that the photographs were inadmissible because they were needlessly cumulative, we note that appellant does not explain which photographs were cumulative, of what precisely they were cumulative, or why their presentation was needless. The photographs are plainly not cumulative of each other.
Rule 403 provides, in part, that relevant evidence may be excluded if its probative value is substantially outweighed by the countervailing consideration of the needless presentation of cumulative evidence. In the interpretation of this part of the rule, we find helpful the comments of Professors Goode, Wellborn, and Sharlot:
... Rule 403 authorizes exclusion of relevant evidence because of “considerations of undue delay, or needless presentation of cumulative evidence.” These “considerations” are a necessary recognition of human mortality, and are well-recognized as legitimate bases for exclusion. Unlike the “danger” of unfair prejudice, confusion of issues, or misleading the jury, these factors are concerned with the efficiency of judicial proceedings rather than the threat of inaccurate decisions.
*213Texas courts have recognized cumula-tiveness as a factor that may allow the exclusion of relevant evidence. “Cumulative” suggests that other evidence on the same point has been already received. But this fact, without more, is not a basis for exclusion. The rule pertains to the “needless presentation” of such evidence. Therefore, judges should be sensitive to the “right” of a party to make her case in the most persuasive manner possible. This may demand two or more' witnesses or documents addressed to the same material issue, as where the evidence objected to as cumulative carries special weight because it comes from a disinterested source. Similarly, the evidence, although cumulative, may come in a form which enhances its effectiveness. In addition, the cumulative effect of the evidence may heighten rather than reduce its probative force.
Goode, Wellborn & Sharlot, Guide to the Texas Rules of Evidence § 403.3 at 135-136 (2nd ed. 1993) (emphasis added).
Assuming arguendo that some or all of the photographs were cumulative, appellant has shown us no basis for concluding that a reasonable trial judge would necessarily find that their probativeness was substantially outweighed by their detrimental effect on the efficiency of the trial process. In summary, we discern no abuse of discretion on the part of the trial court in the admission of the photographs. See Narvaiz v. State, 840 S.W.2d at 428-430; Burdine v. State, 719 S.W.2d 309, 317 (Tex.Crim.App.1986), cert. denied, 480 U.S. 940, 107 S.Ct. 1590, 94 L.Ed.2d 779 (1987). We overrule point of error number two.
In point of error number four, appellant argues that the trial court erred, at the guilt/innocence stage, in admitting State’s exhibit 61 over his objection based on Rule 403. Appellant argues that the exhibit (a silent, ten-minute videotape of the crime scene) was inadmissible because it amounted to “the needless presentation of cumulative evidence and ... was inflammatory and prejudicial.” He complains, too, that the videotape “presented a constant and changing view of the same scene, over and over.” The State argues in response that, “[although the videotape may in a few portions be cumulative of the [still] photographs, it [was] important [to the State’s case] because it show[ed] the overall crime scene to the jury.” The State also argues that the videotape “show[ed] how the [victims’] house was ransacked.”
The videotape depicts the interior and exterior of the victims’ home on the evening of September 23, 1991, approximately one day after they were killed. The videotape offers a panoramic view of the crime scene, showing the general nature of the victims’ wounds, the positions of their bodies, the locations of blood stains, and the general disarray of the home.
Under Rule 403, the trial court’s analysis of the admissibility of a silent videotape is the same as it is for still photographs. Gordon v. State, 784 S.W.2d 410, 411-412 (Tex.Crim.App.1990). And, as with the admissibility of still photographs, the trial court’s decision may not be disturbed on appeal absent an abuse of discretion. Id. at 413.
For the same reasons discussed previously with respect to the admissibility of State’s exhibits 39, 41, 43, 44, 46, and 47, we discern no abuse of discretion on the part of the trial court in the admission of State’s exhibit 61. See id. We overrule point of error number four.
In point of error number three, appellant argues that during the guilt/innocence stage the trial court erred in admitting a blood-stained dollar bill (State’s exhibit number 57) found near Carmen Sustaita’s body. Appellant complains that there was “certainly no testimony concerning the end of the chain of custody.” The State responds that the chain of custody was adequately proven at trial.
We find the State’s argument persuasive. Officer Dale Fernandez testified at the guilt/innocence stage that State’s exhibit number 57 had the same serial number as the dollar bill he found at the crime scene. This was sufficient for admission absent any showing by appellant of tampering or alteration. Stoker v. State, 788 S.W.2d at 10; Tex.R.Crim.Evid. 901(b)(1).
*214Appellant also complains under this point of error that the trial court erred, at the guilt/innocence stage, in admitting State’s exhibits 58, 59, and 60. Appellant complains that the exhibits (all empty envelopes) were inadmissible under Texas Rule of Criminal Evidence 402 because they were irrelevant to any issue in the case.12 The State responds that any error in the admission of the envelopes was harmless beyond a reasonable doubt.13
Again, we find the State’s argument persuasive. The empty envelopes were not incriminating in any way, and they did not place appellant in a poorer light. Therefore, assuming arguendo that the admission of the envelopes was error, we determine nonetheless, beyond a reasonable doubt, that the error made no contribution to appellant’s conviction or punishment. See Castillo v. State, 810 S.W.2d 180, 184-185 (Tex.Crim. App.1990). We overrule point of error number three.
In point of error number five, appellant contends that the trial court erred, at the guilt/innoeence stage, in admitting certain testimony by prosecution witness Joshua Salcido. Appellant complains of Salcido’s testimony that, late on the evening of September 22, 1991, while Salcido was at the Cameron residence, Avila told him that Avila, Cameron, and appellant had “just took somebody out” and that Cameron had then explained that Avila had been referring to “Manny and his mom.” Appellant argues that the testimony was hearsay and that it was not admissible as an adoptive admission (the theory of admissibility advanced by the State) because “Salcido ... could not adequately recall just who was in the room, the full details of the conversation, [or] whether appellant could even have heard the conversation from his supposed position.” The State responds that the testimony was admissible as an adoptive admission under Texas Rule of Criminal Evidence 801(e)(2)(B) because “the trial court had sufficient evidence before it to conclude that appellant ... was present, and ... within hearing distance of the statements made by ... Avila and Cameron, and that these statements clearly called for a response [because they] included appellant in the murders of the Sustaitas.”14 See Tucker v. State, 771 S.W.2d 523, 535, n. 5 (Tex.Crim.App.1988), cert. denied, 492 U.S. 912, 109 S.Ct. 3230, 106 L.Ed.2d 578 (1989); Crestfield v. State, 471 S.W.2d 50, 53 (Tex. Crim.App.1971), cert. denied, 406 U.S. 917, 92 S.Ct. 1764, 32 L.Ed.2d 115 (1972).
The record reflects that, after defense counsel objected to Salcido’s testimony, the State questioned Salcido in an attempt to establish that his testimony was admissible under Rule 801(e)(2)(B):
Prosecutor: Was [appellant] in the room when these statements were made?
A: Yes, he probably — I think so, yes. ******
Q: Was Steve Alvarado in the room and able to hear those statements?
A: No, I think he was, yes. I am pretty sure he was, the more I think about it. ******
The Court: Okay. Repeat what they said.
A: Okay. They walked in, and Augie said they had taken somebody out.
The Court: Okay.
A: I asked them who. And David said that it was Manny and his mom.
The Court: Okay.
*215A: And then I can’t remember whether Steven was in the room or not, but he — he said something about feeling good, and— The Court: Well, how — how do you remember him saying that — how did you hear that?
A: Because he told it to me.
The Court: Then he must have been in the room.
A: He could have been in the kitchen, Your Honor. I don’t remember.
* * * * * *
Prosecutor: And could Steve hear things in the kitchen? Is the house so small that you could hear stuff in the kitchen that’s being said in the den and the living room? A: Yes, if you talk loud enough.
Q: Very easily?
A: Yes.
Q: And was Steve and Dave — was Dave and Augie whispering when they told you this?
A: No. They were talking — they were pretty high.
Q: They were pretty loud?
A: They were kind of loud, kind of high. They were able to be heard.
The Court: Well, I think — I think he said enough whereby the Court will allow it to go to the jury. We will just see what the jury can make out of that. They can give it whatever weight or completely disregard it- So, I will overrule the objection.
The State, as the proponent of the evidence, had the burden of proving to the trial court, by a preponderance of the evidence, that Salcido’s testimony qualified as an adoptive admission under Rule 801(e)(2)(B). Meador v. State, 812 S.W.2d 330, 333 (Tex.Crim.App.1991); Tex.R.Crim. Evid. 104(a); J. Strong, McCormick on Evidence § 53 at 214, n. 8 (4th ed. 1992). By admitting the testimony, the trial court implicitly found that the State carried its burden.- As an appellate court, we may not disturb the trial court’s decision absent an abuse of discretion. Coffin v. State, 885 S.W.2d 140, 149 (Tex.Crim.App.1994).
We discern no abuse of discretion. The record reasonably supports the trial court’s implicit finding that, on the night in question, appellant acquiesced by his silence in a statement that he heard and understood. We overrule point of error number five.
In point of error number six, appellant argues that the trial court erred, at the guilt/innocence stage, in admitting the testimony of El Paso Police Officer Robert Feverston, who testified as an expert on bloodstain pattern interpretation. Appellant argues that the admission of the testimony violated Texas Rule of Criminal Evidence 702 because Feverston was not qualified as an expert in any recognized discipline and because his testimony amounted to “speculation and conjecture.”15
The record reflects that before the trial court decided to admit Feverston’s testimony, he testified: that bloodstain pattern interpretation involved the visual examination of bloodstains on various types of surfaces for the purpose of determining how the bloodstains were deposited; that bloodstain pattern interpretation was based on general principles of physics and mathematics; that he had received more than 60 hours of training in the subject from the Houston and El Paso police departments; that he had read a book on the subject; and that the methods he used in his interpretation of bloodstains were of the type relied upon by experts in the field.
Under Rule 702, the trial court, before admitting expert testimony, must be satisfied that three conditions are met: (1) that the witness qualifies as an expert by reason of his knowledge, skill, experience, training, or education; (2) that the subject matter of the testimony is an appropriate one for expert testimony; and (3) that admitting the expert testimony will actually assist the *216factfinder in deciding the case. See Goode, Wellborn & Sharlot, Guide to the Texas Rules of Evidence § 702.2 at 13 (2nd ed. 1993). The trial court’s decision may not be disturbed on appeal absent an abuse of discretion. Joiner v. State, 825 S.W.2d 701, 708 (Tex.Crim.App.1992), cert. denied, — U.S. -, 113 S.Ct. 3044, 125 L.Ed.2d 729 (1993).
We discern no abuse of discretion on the part of the trial court in the admission of Peverston’s testimony. Based on the record before him, the trial court could have reasonably found, by a preponderance of the evidence, that: (1) Peverston, because of his training, qualified as an expert on bloodstain pattern interpretation; (2) lay persons were not qualified to the best possible degree to interpret bloodstain patterns and, therefore, expert testimony on that subject was generally appropriate;16 and (3) Feverston’s specialized knowledge would actually assist the jury in appellant’s case in determining his guilt or innocence. We overrule point of error number six.
In point of error number twelve, appellant contends that the trial court erred “in improperly defining the requisite mens rea of capital murder” in that portion of the jury charge relating to the death of Carmen Sustaita. Appellant concedes he made no objection below but insists he was harmed “egregiously” because the charge authorized the jury to find him guilty of capital murder if it found merely that he knowingly caused Carmen’s death during the course of robbery. Appellant argues that “the defense ... fiercely argued that there was ... insufficient evidence ... to connect [him] with the death of [Carmen]; [a] jury wrangling with this contention might easily settle upon a lesser degree of culpability of knowingly causing [Carmen’s] death, reasoning that ... appellant did nothing intentional, but, in effect, ‘knew’ about it.” The State responds that any error in the charge did not cause egregious harm.
The record reflects that the charge stated in relevant part:
A person commits the offense of capital murder if he intentionally causes the death of an individual while in the course of committing, or attempting to commit the offense of robbery.
* * * * * *
Now, if you find from the evidence beyond a reasonable doubt that on or about the 22nd day of September, 1991, in El Paso County, Texas, the defendant, STEVE BRIAN ALVARADO, acting alone or as a party as that term has been defined herein, did intentionally or knowingly cause the death of REFUGIO CARMEN SUSTAITA by stabbing the said REFUGIO CARMEN SUSTAITA with a sharp instrument and said death was caused during the commission or attempted commission of the offense of robbery of REFUGIO CARMEN SUSTAITA, then you will find the defendant guilty of capital murder.
(Emphasis added.)
Appellant was indicted for the intentional capital murder of Carmen Sustaita under Texas Penal Code § 19.03(a)(2). Thus, the trial court erred in instructing the jury that it could find appellant guilty of her capital murder if it found merely that appellant knowingly caused her death during the course of robbery. Richardson v. State, 744 S.W.2d 65, 83-84 (Tex.Crim.App.1987); see 8 McCormick, Blackwell & Blackwell, Texas Criminal Forms and Trial Manual § 110.06 (10th ed. 1995). Since appellant made no objection below, however, “he will obtain a reversal only if the error [was] so egregious and created such harm that he has not had a fair and impartial trial.” Almanza v. State, 686 S.W.2d 157, 171 (Tex.Crim.App.1984) (internal quotes omitted). “[T]he actual degree of harm must be assayed in light of the entire jury charge, the state of the evidence, including the contested issues and weight of probative evidence, the argument of counsel and any other relevant information revealed by the record of the trial as a whole.” Id. “[I]n making our determination, we may presume that the jury acted rationally, at least absent a showing to the contrary.” Richardson v. State, 879 S.W.2d 874, 882 (Tex.Crim. App.1993). Appellant has the burden of per*217suasion -with respect to the requisite degree of harm. Abdnor v. State, 871 S.W.2d 726, 732 (Tex.Crim.App.1994).
Appellant has shown us nothing in the record that supports his claim of egregious harm. Our independent examination of the record reveals no evidence, argument of counsel, or anything else that might have persuaded a rational jury that appellant, either alone or as a party, was guilty only of the knowing murder of Carmen Sustaita. Compare Richardson v. State, 879 S.W.2d at 882 (any error in charge harmless where, on record, a rational jury’s deliberations would not have been affected by error). We therefore overrule point of error number twelve.
In point of error number nine, appellant contends that the trial court erred, at the punishment stage, in admitting the testimony of prosecution witness Gary Gagnon concerning uncharged misconduct on the part of appellant. Appellant, citing the Fourteenth Amendment due process clause, Article 39.14, and Texas Rule of Criminal Evidence 404(b), argues that the evidence was inadmissible because “the State faded to provide specific notice of its intent [to offer the evidence] after timely request by the defense.”
We discern no reversible error. First, we need not address appellant’s due process and Article 39.14 arguments because they were not raised in the trial court. See Tex.R.App. Proc. 52(a). Second, Rule 404(b), with its notice requirement, is not applicable to the punishment stage of a capital murder trial. Adanandus v. State, 866 S.W.2d 210, 233 (Tex.Crim.App.1993), cert. denied, — U.S. -, 114 S.Ct. 1338, 127 L.Ed.2d 686 (1994). We overrule point of error number nine.
In point of error number ten, appellant argues that the trial court erred in refusing to allow the admission, at the punishment stage, of evidence of Carmen Sustaita’s bad character. The evidence in question, preserved in an offer of proof, was the testimony of El Paso Police Officer David Martin and was to the effect that on September 7, 1990, Carmen Sustaita physically assaulted Martin while he was on official police business. Appellant argues that Carmen Sustai-ta’s bad character was a “circumstance” of her murder and that evidence thereof was admissible under Article 37.071, § 2(a). The - record reflects that the trial court refused to admit the evidence because there was no accompanying evidence that, at the time of Carmen Sustaita’s death, appellant was aware of her assault upon Martin.
Article 37.071, § 2(a) provides, in relevant part, that “[i]n the [punishment] proceeding [of a capital murder trial], evidence may be presented by the state and the defendant or the defendant’s counsel as to any matter that the court deems relevant to sentence, including evidence of the defendant’s background or character or the circumstances of the offense that mitigates against the imposition of the death penalty.” The evidence in question was clearly irrelevant to the jury’s consideration of the special punishment issues submitted under Article 37.071, § 2(b). See footnote three, supra. The question, then, is whether the evidence was relevant to the jury’s consideration of the special punishment issue on mitigation submitted under Article 37.071, § 2(e).
Within the meaning of Article 37.071, § 2(a), evidence “mitigates against the imposition of the death penalty” if a reasonable juror could conclude that the evidence was a basis for a sentence less than death. See Lockett v. Ohio, 438 U.S. 586, 604, 98 S.Ct. 2954, 2964-65, 57 L.Ed.2d 973 (1978). For example, evidence mitigates against the imposition of the death penalty if a reasonable juror could conclude that it showed that the defendant, if allowed to live, would be a model prisoner or that the defendant was less than fully blameworthy morally for his crime. In our view, however, a reasonable juror could not conclude that the victim’s prior bad act (an assault on a police officer) tended to lessen the defendant’s moral blameworthiness for the murder of that victim when the defendant was unaware of the victim’s bad act. Thus, we find no abuse of discretion on the part of the trial court in refusing to admit Martin’s testimony. Compare State v. Southerland, 447 S.E.2d 862, 867 (S.C.1994) (capital murder defendant has no Eighth Amendment right to present evi*218dence of victim’s bad character).17 Point of error number ten is overruled.
Finally, in point of error number eleven, appellant argues that his Fourteenth Amendment right to due process of law was violated when the trial court “allow[ed] the State to shift its burden of proof to the defense” at the punishment stage. Appellant’s complaint concerns the State’s cross-examination of two defense witnesses, Dr. Follett and Alvaro Taylor, both of whom testified that appellant’s antisocial tendencies might be alleviated with medical treatment. The relevant portions of the cross-examination were as follows:
Prosecutor [to Dr. Follett]: Now, could you guarantee that with treatment a person like [appellant] would never commit murder again?
Defense Counsel: Your Honor, I object, because this goes to the burden of proof the State has harped on in voir dire over and over, the possibility and probability. There is no requirement that this witness prove for the State that it’s a guarantee. We are simply talking about the probability and possibility problem.
Prosecutor: Your Honor, I am simply trying to find out how strong his opinion is.
The Court: Alright. Objection overruled.
Dr. Follett: I don’t think I can make a guarantee just as I can’t guarantee that you won’t kill somebody. I mean, who knows? I am not God.
# ‡ ‡ ‡ ‡
Prosecutor [to Mr. Taylor]: So, you can’t guarantee if Steven is allowed to go to prison he cannot continue to represent a danger, can he?
Defense Counsel: This witness has no position to guarantee.
Prosecutor: Judge, they have been going into this thing. I think I am entitled to rebut their entire theory here.
The Court: Fine. The objection is overruled.
Prosecutor: But you don’t see someone who kills two people brutally, 34 stab wounds, three to the neck, the other person dying from 18 stab wounds, as a person who represents a danger to society?
A: I think, first of all, they possess a danger to themselves because someone in that capacity that would create and do such a crime has to be mentally unstable. I think you yourself are well aware of that.
Q: Okay. Do they represent a danger to other people?
A: If not given the proper care, yes.
We discern no violation of appellant’s right to due process of law. The record reflects that the trial court charged the jury correctly on the State’s burden of proof with respect to the punishment issues. See footnote three, supra. Thus, on this record, we see no reasonable likelihood that the jury was misled as to the correct burden of proof. We overrule point of error number eleven.
Having found no reversible error, we AFFIRM the judgments of the trial court.
OVERSTREET, J., concurs in the result. CLINTON, J., dissents.. Appellant's trial occurred in September and October of 1993. Texas Penal Code § 19.03(a)(2), the statutory provision under which appellant was convicted, provides in relevant part that "[a] person commits [a capital] offense if he commits murder [i.e., intentionally or knowingly causes the death of an individual] and: the person intentionally commits the murder in the course of committing or attempting to commit ... robbery.” The record reflects that appellant was seventeen years old at the time of the offense.
. All references to articles are to those in the Texas Code of Criminal Procedure.
. Article 37.071, § 2, provides in relevant part: (b) On conclusion of the presentation of the evidence [at the punishment stage], the court shall submit the following issues to the jury:
(1) whether there is a probability that the defendant would commit criminal acts of violence that would constitute a continuing threat to society; and
(2) in cases in which the jury charge at the guilt or innocence stage permitted the jury to find the defendant guilty as a party under Sections 7.01 and 7.02, Penal Code, whether the defendant actually caused the death of the deceased or did not actually cause the death of the deceased but intended to kill the deceased or another or anticipated that a human life would be taken.
*204(c) The state must prove each issue submitted under Subsection (b) of this article beyond a reasonable doubt, and the jury shall return a special verdict of "yes” or “no” on each issue submitted under Subsection (b) of this article.
H: * * ‡ ‡
(e) The court shall instruct the jury that if the jury returns an affirmative finding to each issue submitted under Subsection (b) of this article, it shall answer the following issue:
Whether, taking into consideration all of the evidence, including the circumstances of the offense, the defendant's character and background, and the personal moral culpability of the defendant, there is a sufficient mitigating circumstance or circumstances to warrant that a sentence of life imprisonment rather than a death sentence be imposed.
(f) The court shall charge the jury that in answering the issue submitted under Subsection (e) of this article, the jury:
* * * * * *
(4) shall consider mitigating evidence to be evidence that a juror might regard as reducing the defendant's moral blameworthiness.
. Texas Penal Code § 7.01 provides, in relevant part:
(a) A person is criminally responsible as a party to an offense if the offense is committed by his own conduct, by the conduct of another for which he is criminally responsible, or by both.
Section 7.02 provides, in relevant part:
(a) A person is criminally responsible for an offense committed by the conduct of another if:
* ‡ Hi 5k *
(2) acting with intent to promote or assist the commission of the offense, he solicits, encourages, directs, aids, or attempts to aid the other person to commit the offense.
. Appellant presented no defensive evidence at the guilt/innocence stage.
. Appellant’s written statement shows on its face that, prior to making the statement, he received the warning required by Article 38.22, § 2, and he knowingly, intelligently, and voluntarily waived the rights set out in the warning.
. See Miranda v. Arizona, 384 U.S. 436, 86 S.Ct. 1602, 16 L.Ed.2d 694 (1966).
. In appellant’s written statement (State’s exhibit number 126), he referred to Martinez erroneously as "Joelynn.”
. No evidence regarding the voluntariness of appellant’s statement was submitted at the guilt/innocence stage of trial. Had such evidence been submitted, the trial court would have been required to instruct the jury in accordance with Article 38.22, § 6.
.Appellant does not argue, and therefore we have no occasion to consider, whether a higher standard of proof was required as a matter of state law. See Griffin v. State, 765 S.W.2d 422, 429 n. 13 (Tex.Crim.App.1989).
. Rule 403 provides:
Although relevant, evidence may be excluded if its probative value is substantially outweighed by the danger of unfair prejudice, confusion of the issues, or misleading the jury, or by considerations of undue delay, or needless presentation of cumulative evidence.
. Rule 402 provides:
All relevant evidence is admissible, except as otherwise provided by constitution, by statute, by these rules or by other rules prescribed pursuant to statutory authority. Evidence which is not relevant is inadmissible.
. Texas Rule of Appellate Procedure 81(b)(2) provides:
If the appellate record in a criminal case reveals error in the proceedings below, the appellate court shall reverse the judgment under review, unless the appellate court determines beyond a reasonable doubt that the error made no contribution to the conviction or to the punishment.
.Rule 801(e)(2)(B) provides:
A statement is not hearsay if ... [t]he statement is offered against a party and is ... a statement of which he has manifested his adoption or belief in its truth.
. Rule 702 provides:
If scientific, technical, or other specialized knowledge will assist the trier of fact to understand the evidence or to determine a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training, or education, may testify thereto in the form of an opinion or otherwise.
. See Duckett v. State, 797 S.W.2d 906, 910 (Tex.Crim.App. 1990).
. In Payne v. Tennessee, 501 U.S. 808, 111 S.Ct. 2597, 115 L.Ed.2d 720 (1991), the Supreme Court held that the Eighth Amendment does not bar the State from offering or the jury from considering evidence of the good character of the victim in the jury's assessment of the defendant’s moral culpability for the death of the victim. Payne, however, did not hold or suggest that the Eighth Amendment grants a defendant the right to present evidence of the victim’s bad character.