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¶1 We review a Court of Appeals' decision holding that Gary Benn's conviction for aggravated murder violates double jeopardy. We reverse the Court of Appeals' decision and hold that a jury's failure to find an aggravating factor during the penalty phase of a capital trial does not constitute an acquittal of that aggravating factor implicating double jeopardy. We affirm the Court of Appeals on the remaining evidentiary issues.
¶3 The State recharged Benn with two counts of first degree murder and alleged, over Benn's objection, that the murders were committed as a "single act." The State did not seek the death penalty. The jury convicted Benn of two counts of first degree murder and found that the evidence supported the "single act" aggravating factor. The court then sentenced Benn to life in prison without the possibility of release. Benn appealed, arguing in part that the State violated double jeopardy principles when it realleged the "single act" aggravating factor. Benn argued that his first jury's silence on the aggravating factor constituted an implied acquittal terminating jeopardy.
¶4 Division Two of the Court of Appeals agreed with Benn. In a partially published opinion, the appellate court held that the jury's silence regarding the "single act" aggravating factor constituted an implicit acquittal of the factor for purposes of double jeopardy. The Court of Appeals affirmed the conviction, vacated the "single act" special verdict, and remanded the case for resentencing without the aggravating factor. State v. Benn, 130 Wn. App. 308, 123 P.3d 484 (2005). We granted the State's petition for review at157 Wn.2d 1017, 142 P.3d 607 (2006).
¶6 2. Did the trial court otherwise err in admitting and/or excluding evidence at trial? *Page 261
¶8 Benn contends that the blank verdict question regarding the "single act" aggravating factor constituted an implied acquittal terminating jeopardy and precluding the State's second prosecution for aggravated murder. Under the implied acquittal doctrine, a jury's silence on a charge may constitute an implied acquittal terminating jeopardy. Green v.United States, 355 U.S. 184, 190-91, 78 S. Ct. 221,2 L. Ed. 2d 199 (1957); accord State v. Davis, 190 Wash. 164, 166,67 P.2d 894 (1937). In Green, the jury was silent as to the charge of first degree murder during Green's first trial. 355 U.S. at 187. The Supreme Court held that Green's retrial for first degree murder violated "both the letter and spirit of the Fifth Amendment." Id. at 198.
¶9 Applying Green, the Court of Appeals held that the blank verdict form regarding the "single act" aggravating factor in Benn's first trial constituted an implied acquittal barring Benn's subsequent prosecution for the "single act" aggravating factor. The State argues that the Court of Appeals' reliance on Green was misplaced because double *Page 262 jeopardy does not apply to aggravating factors.1 This court reviews questions of law de novo. State v.Watson, 155 Wn.2d 574, 578, 122 P.3d 903 (2005).
A. Do double jeopardy principles apply to aggravatingfactors?
¶10 A jury's imposition of a life sentence in a capital case generally constitutes an acquittal of the death penalty, prohibiting the State from seeking the death penalty in the event of a retrial. E.g., Bullington v. Missouri,451 U.S. 430, 446, 101 S. Ct. 1852, 68 L. Ed. 2d 270 (1981). InBullington, the Supreme Court held that jeopardy terminates when a jury acquits a defendant of the death penalty; thus, although the State may retry a defendant for the offense of murder, it may not seek the death penalty if a previous jury has found it unwarranted. Id.; accord Arizonav. Rumsey, 467 U.S. 203, 211, 104 S. Ct. 2305,81 L. Ed. 2d 164 (1984) (holding that an acquittal of the sentence of death "bars any retrial of the appropriateness of the death penalty").
¶11 In the instant case, the State argues that the Court of Appeals erred by implicitly extending this general rule and holding that a jury's failure to find an aggravating factor during the penalty phase of a capital trial constitutes an acquittal of that aggravating factor. For support, the State relies on Poland v. Arizona, 476 U.S. 147,106 S. Ct. 1749, 90 L. Ed. 2d 123 (1986). In Poland, the Supreme Court held that the State did not violate double jeopardy in seeking the death penalty upon retrial when the defendant was not acquitted of the death penalty in the first trial.Id. at 157. The Poland Court rejected the argument "that a capital sentencer's failure to find a particular aggravating circumstance alleged by the prosecution always constitutes *Page 263 an `acquittal' of that circumstance for double jeopardy purposes." Id. at 155. The Court stated that such a holding "would push the analogy on which Bullington is based past the breaking point." Id. at 156. The Court distinguished aggravating factors from other offenses, stating that aggravating factors "are not separate penalties or offenses" but rather "`standards to guide the making of [the] choice' between the alternative verdicts of death and life imprisonment." Id. (alteration in original) (quotingBullington, 451 U.S. at 438). The State thus argues that double jeopardy principles do not apply to aggravating factors.
¶12 Benn, however, contends that Poland does not survive Ring v. Arizona, 536 U.S. 584,122 S. Ct. 2428, 153 L. Ed. 2d 556 (2002), and its progeny. Id. at 609 (holding that aggravating factors are "`the functional equivalent of an element of a greater offense'" for purposes of the Sixth Amendment (quoting Apprendi v. New Jersey,530 U.S. 466, 494 n. 19, 120 S. Ct. 2348, 147 L. Ed. 2d 435 (2000))). Despite Ring's elevation of aggravating factors to the equivalent status of elements under theSixth Amendment, Poland's holding remains good law.
¶13 In the Supreme Court's post-Ring decision inSattazahn v. Pennsylvania, 537 U.S. 101,123 S. Ct. 732, 154 L. Ed. 2d 588 (2003) (plurality opinion), Justice Scalia, writing for the plurality, held that double jeopardy protections did not prevent the State from retrying a defendant for the death penalty where a jury deadlocked during the penalty phase of his first trial. Id. at 108 (citingPoland with approval). Justice Scalia then turned to the question of Ring in a section of the opinion that garnered only a plurality. Joined by Justice Thomas and Chief Justice Rehnquist, Justice Scalia held that in apost-Ring world, "`murder plus one or more aggravating circumstances' is a separate offense from `murder'simplicitier." Id. at 112. "If a jury unanimously concludes that a State has failed to meet its burden of proving the existence of one or more aggravating circumstances, double-jeopardy protections attach to that `acquittal' on the offense of `murder plus aggravating *Page 264 circumstance(s).'" Id. Under Justice Scalia's plurality, a State may retry a defendant for the death penalty unless the verdict forms establish that the jury, by unanimously rejecting all charged aggravators, "acquitted" the defendant of those aggravators and thereby created a "`legal entitlement to a life sentence.'" Id. at 110 (internal quotation marks omitted) (quoting Commonwealth v.Sattazahn, 563 Pa. 533, 548, 763 A.2d 359 (2000)).
¶14 Even under Justice Scalia's plurality, double jeopardy principles do not apply to individual aggravating factors. Courts interpreting the Sattazahn decision have rejected Benn's argument that a jury may "acquit" a defendant of an individual aggravating factor. E.g., Commonwealth v.May, 587 Pa. 184, 204, 898 A.2d 559 (2006) ("Sattazahn speaks to the situation where the original jury did not find any aggravating circumstances, and, thus, the sentence of life imprisonment was statutorily mandated." (emphasis omitted)), cert. denied, 127 S. Ct. 557 (2006); see also State v. Demise, 98-0541 (La. 4/3/01), 802 So. 2d 1224, 1243-44 (holding post-Apprendi "that a jury's failure to find an aggravating factor during the penalty phase of a capital trial does not constitute an acquittal of that aggravating factor"),cert. denied, 534 U.S. 926 (2001).
¶15 Had the jury in Benn's first case acquitted him of the death penalty, the State would not have been allowed to subsequently charge him for a capital offense without violating double jeopardy. However, Benn's first jury sentenced him to death. Thus, the State could have sought the death penalty again on retrial. A jury's failure to find the existence of an aggravating factor does not constitute an "acquittal" of that factor for double jeopardy purposes. Accordingly, we reverse the Court of Appeals on this issue.
B. Benn's Remaining Arguments
¶16 Because we hold that Benn's retrial with the inclusion of the "single act" aggravating factor does not violate double jeopardy, we next query whether Benn's remaining arguments have merit. *Page 265
¶18 Both the Sixth Amendment's confrontation clause and ER 804(b)(1) bar admission of previous testimony of an unavailable witness, unless the defendant had a prior opportunity and similar motive to cross-examine the witness. See Crawfordv. Washington, 541 U.S. 36, 68, 124 S. Ct. 1354,158 L. Ed. 2d 177 (2004) (holding that admission of out-of-court testimonial hearsay of an unavailable witness violates the confrontation clause unless the defendant had a prior opportunity to cross-examine the witness).
¶19 The Court of Appeals held that the admission of Hartman's testimony violated neither the Sixth Amendment's confrontation clause nor ER 804(b)(1) because Benn had the "opportunity and similar motive" to cross-examine Hartman in his first trial. Benn contends that his belief *Page 266 that Hartman would kill or harm his family if he cross-examined him deprived him of any "opportunity" to cross-examine Hartman within the meaning of theSixth Amendment. The Court of Appeals concluded that Benn had the opportunity to cross-examine Hartman — despite his fear — and that he "`had a substantially similar interest in asserting [his] side of the issue.'" State v. Benn, No. 31122-4-II, slip op. (unpublished portion) at 15 (Wash.Ct.App. Nov. 15, 2005) (quoting United States v.DiNapoli, 8 F.3d 909, 912 (2d Cir. 1993)).
¶20 We affirm the Court of Appeals and hold that Benn had the opportunity and similar motive to cross-examine Hartman in his first trial. Neither the court nor the State prevented Benn from cross-examining Hartman, and he had a similar motive in asserting his side of the issue.
¶21 Even if we were to conclude that the trial court erred in admitting Hartman's prior testimony, such an error is not grounds for reversal. Confrontation clause errors are subject to harmless error analysis. Delaware v. Van Arsdall,475 U.S. 673, 684, 106 S. Ct. 1431, 89 L. Ed. 2d 674 (1986). When an error is of constitutional magnitude, the court must apply the "harmless error beyond a reasonable doubt" standard and query whether any reasonable jury would have reached the same result in the absence of the tainted evidence. Statev. Guloy, 104 Wn.2d 412, 425-26, 705 P.2d 1182 (1985).4
¶22 In the instant case, Benn testified at trial that he came to the house of his victims and found them in a fight. He argued that victim Jack Dethlefsen shot victim Michael Nelson and then turned to shoot Benn. Benn testified that he fought for the gun and shot Dethlefsen in self-defense. *Page 267 Testimony at trial, however, revealed otherwise. For example, Benn's neighbor Anthony Miller testified that Benn asked him to provide an alibi for him. 13 Verbatim Report of Proceedings (VRP) at 1564-65. The evidence also revealed that Benn changed his version of the events. Benn originally called 911 to report that he found the two victims already dead. Barbershop owner Larry Kilen testified that Benn called him the day after the murders and told him that he went to the house and found the two victims already dead. 12 VRP at 1332. Benn then changed his story and claimed he shot both victims in self-defense after they attacked him. 19 VRP at 2507-10. He also claimed that a person held a gun to his head and made him shoot the two victims. Id. at 2511. Benn then drew a diagram while in jail that detailed the events and depicted him as the murderer. E.g., 18 VRP at 2453-61. Considering the other untainted evidence and Benn's varied version of the shootings, any error was harmless beyond a reasonable doubt.Guloy, 104 Wn.2d at 425-26.
¶24 The Court of Appeals concluded that the trial court should have allowed Benn's attorneys to question the experts with the learned treatises under ER 803(a)(18). Nonetheless, the Court of Appeals concluded that Benn did not make an offer of proof to the trial court and thus could not demonstrate how the court's ruling harmed him. For support, the Court of Appeals relied on ER 103(a)(2), which states that a party may not predicate an error upon a ruling excluding evidence unless the admission affects a substantial right and "the substance of the evidence was made known to the court by offer or was apparent from the context within which questions were asked."
¶25 Courts interpreting ER 103(a)(2) have excused the absence of an offer of proof where "the substance of the excluded evidence is apparent either from the questions asked [or] the context in which the questions are asked." Statev. Ray, 116 Wn.2d 531, 539, 806 P.2d 1220 (1991). The substance of the evidence was fairly apparent from Benn's questioning of the experts. However, even if the court were to consider the evidentiary error, the error must be prejudicial to warrant reversal.
¶26 Benn contends that the trial court's error precluded him from discrediting the experts regarding bloodstains found on Benn's shoes; however, he fails to describe how such testimony would have affected the outcome of the trial. Further, although he was not allowed to cross-examine the experts as to the treatise, he did cross-examine the experts on many other matters. See 14-16 VRP. In addition, although the trial court repeatedly prevented Benn's attorney from quoting McDonnell's treatise in his cross-examination of Grubb, Benn was nonetheless able to elicit his point that some experts believe that high velocity blood spatter must be less than 0.1 millimeter. See 15 VRP at 1833 ("And you would agree that their interpretation of high velocity blood spatter would say it has to be less than .1 millimeter?"). Thus, any alleged error was harmless. *Page 269
¶28 Benn also contends that the trial court improperly excluded Englert's testimony from other trials that Benn argued was inconsistent with his testimony in his trial. Although the Court of Appeals acknowledged that the trial court would have erred under ER 801(d)(1)(i) if it excluded prior, inconsistent testimony, it held that Benn did not make an offer of proof as to what the prior testimony was and how it was inconsistent. Thus, the Court of Appeals could not determine whether the trial court had in fact erred. See ER 103(a)(2). We agree and affirm the Court of Appeals on this issue.
¶30 The Court of Appeals concluded that although the trial court improperly admitted the hearsay statements, the error did not harm Benn. The Court of Appeals held that the statement was not important to the State's case and was actually consistent with Benn's case theory that the two murder victims had previously been in a fight with each other. We agree and hold that although the trial court erred in admitting the hearsay statements of Dethlefsen, the error did not prejudice Benn and was harmless.
ALEXANDER, C.J., and MADSEN, BRIDGE, CHAMBERS, FAIRHURST, and J.M. JOHNSON, JJ., concur.