State v. Carillo

I attest to the accuracy and
integrity of this document
New Mexico Compilation
Commission, Santa Fe, NM
'00'04- 13:55:39 2017.08.09

IN THE SUPREME COURT OF THE STATE OF NEW MEXICO

Opinion Number: 2017-NMSC-023

Filing Date: June 30, 2017

Docket No. S-1-SC-34662

STATE OF NEW MEXICO,

Plaintiff-Appellee,

v.

CARLOS CARRILLO,

Defendant-Appellant.

APPEAL FROM THE DISTRICT COURT OF BERNALILLO COUNTY
Brett R. Loveless, District Judge

Robert E. Tangora, L.L.C.
Robert E. Tangora
Santa Fe, NM

for Appellant

Hector H. Balderas, Attorney General
Sri Mullis, Assistant Attorney General
Santa Fe, NM

for Appellee

OPINION

VIGIL, Justice.

{1} This is a capital appeal from the Second Judicial District Court following Defendant
Carlos Carrillo’s convictions of the murders of Christopher Kinney (Kinney) and Lyndsey
Frost (Frost), tampering with evidence, and breaking and entering. Defendant appeals his
convictions, arguing that: (1) the district court erred in allowing lay witnesses to testify to
cell phone-related evidence with respect to the murder convictions, which, in Defendant’s
view, required a qualified expert; (2) there was insufficient evidence to support Defendant’s
convictions of murder, tampering with evidence, and breaking and entering; (3) the State

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committed prosecutorial misconduct when it repeatedly attempted to admit statements that
the district court had ruled inadmissible prior to trial; and (4) cumulative error renders the
guilty verdict unreliable. While we agree with Defendant with respect to the first issue, in
part, we find that it was harmless error. We affirm Defendant’s convictions.

I. BACKGROUND

{2} At around 8:00 a.m. on December 4, 2011, Albuquerque Police Department (APD)
officers were dispatched to Tiguex Park in the Old Town area of Albuquerque. There, an
APD officer spoke with a witness who had called 911 after noticing a blue Chevy Silverado
pickup truck parked on the street with a man slumped over the driver’s seat.

{3} After consulting with the witness, an APD officer approached the truck, which had
the driver’s side window rolled down, and saw a man, later identified as Kinney, in the
driver’s seat with what appeared to be a gunshot wound behind his left ear. The APD officer
also noticed a woman in the passenger seat who was later identified as Kinney’s girlfriend,
Frost. Both were unconscious and unresponsive.

{4} As part of their investigation, the APD officers canvassed the neighborhood and
asked nearby residents whether they had heard or seen anything. Some neighbors reported
hearing cars driving down the street and a loud noise sometime between midnight and 4:00
a.m. Physical evidence collected from the crime scene included a red cell phone belonging
to Kinney, seven shell casings, and two projectiles. Four additional projectiles were
recovered during the autopsy of Frost.

{5} Based on the injuries to the victims and the trajectory of the bullets, the APD officers
concluded that the shooter was standing at the driver’s side of the truck and shot through the
open window or possibly with the gun held inside the truck, since some of the ejected shell
casings were found inside the vehicle. The APD officers also concluded that the victims did
not have an opportunity to defend themselves as there was no evidence of a struggle, and
Kinney’s injury was from a shot fired at very close range. Frost had injuries that went
through her hands and the top of her head, indicating that she was trying to protect herself
by covering her head with her hands, and likely had her head down during the shooting.
These conclusions regarding the victims’ injuries were supported by the information
provided by Dr. Ross Zumwalt from the Office of the Medical Investigator after the
autopsies of the victims.

{6} Later that morning, the APD officers responded to a call that a male suspect was
attempting to break into a car parked at the Golden Pride Restaurant on Old Coors and
Central. The witness who called 911 reported that it looked like the suspect was using the
butt of a gun to break the window of the car. The suspect then fled on foot.

{7} While en route to the restaurant, an APD officer made contact with a person who fit
the description of the suspect. Shortly after, another APD officer arrived and assisted in

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arresting the suspect, who identified himself as Carlos Carrillo. Defendant told the APD
officers that the car belonged to his girlfriend, Shantell Montoya (Montoya), who was at
work at the restaurant, and that he broke the car window with his hands to retrieve his cell
phone from inside the vehicle. The APD officers did not notice any injuries on Defendant’s
hands, and did not find a firearm on Defendant or along his possible routes from the
restaurant parking lot to the intersection where he was arrested. Defendant did have $413 in
cash, a cell phone, a bottle of cologne, and a plastic bag containing a brown substance, which
Defendant admitted was heroin but which he claimed did not belong to him.

{8} The APD officers discovered that Defendant’s cell phone number was saved in
Kinney’s cell phone under the name “Los” (presumably short for “Carlos”). There were
multiple text messages on Kinney’s cell phone that were sent to “Los” in the early morning
hours of December 4, 2011. These text messages included:

2:28 a.m. - “This is f[***]ed up, bro[.] no joke[. W]hy you doing me like
this?”

3:31 a.m. - “Dude[,] are you [f***]ing kidding me[? I] trusted you[. I] waited
forever[. L]et me know what the [f***]ing deal is[. I] can[’]t believe you[.
You’re] just as bad as [JJ,] but at least we got some [s***] from him[. T]his
is [f***]ing bull[s***. I] seriously can[’]t believe you[.]”

After retrieving Defendant’s cell phone number from Kinney’s cell phone, the APD officers
obtained Defendant’s cell phone records. The cell phone records showed that between 11:34
p.m. on December 3, 2011 and 4:03 a.m. on December 4, 2011, there were seventy-five cell
phone calls from Kinney to Defendant and eight from Defendant to Kinney. Based on the
text messages and calls, Detective Hollie Anderson believed that there was a disagreement
and a possible confrontation between Kinney and Defendant.

{9} Detective Anderson interviewed Defendant in the early morning hours of December
5, 2011. Defendant initially told Detective Anderson that he went to bed around 1:00 a.m.
or 2:00 a.m. on the night of December 3 into December 4, and stayed home the entire day
of December 4. When Detective Anderson asked how he could have been arrested if he
stayed home all day, Defendant explained that Montoya picked him up and took him to the
restaurant where she worked. Initially, Defendant said that he and his girlfriend were pulled
over and that the APD officers found drugs on his side of the car, so he was arrested. In
response to further questioning, however, Defendant changed his story and explained that
he was walking away from the restaurant when an APD officer stopped him in response to
a 911 caller reporting that he had tried to break into Montoya’s car. He said that the APD
officers found the heroin at that time, but he was not sure where they found it.

{10} Detective Anderson asked Defendant whether he knew either Kinney or Frost.
Defendant claimed that he did not know anyone by those names. However, when Detective
Anderson showed him a picture of Kinney, he responded that he and Kinney had gotten high

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together and that he sometimes helped Kinney “score” drugs. Defendant alleged that Kinney
had tried to call him to get drugs the night before he was arrested. Defendant said that he was
not able to find drugs for Kinney that night, and that since Kinney eventually stopped
calling, he assumed that Kinney had found some drugs on his own. Detective Anderson told
Defendant that Kinney and Frost had been found murdered that morning. Defendant denied
knowing about the murders.

{11} On December 20, 2011, Defendant was charged by grand jury indictment with two
counts of first-degree murder (willful and deliberate), two counts of first-degree felony
murder, two counts of shooting at or from a motor vehicle causing great bodily harm,
tampering with evidence, possession of a firearm by a felon, auto burglary, and possession
of a controlled substance (heroin). During November 2013, Defendant was tried on all
charges except the felon in possession of a firearm charge, which was severed.

{12} The pretrial scheduling order mandated that the parties produce and exchange final
witness lists no later than ten days prior to the first day of trial. The State provided a final
witness list in accordance with the pretrial scheduling order, but it did not identify any expert
witnesses. Defendant filed a motion in limine to restrict Abraham Cabrera (Cabrera) and
Amy Tan (Tan) from testifying because they lacked personal knowledge, their testimony was
irrelevant, and neither one was disclosed as an expert witness. See Rule 11-602 NMRA (A
lay witness “may testify to a matter only if evidence is introduced sufficient to support a
finding that the witness has personal knowledge of the matter.”); Rule 11-401 NMRA
(Evidence is relevant if it tends to make a fact in issue “more or less probable” and “the fact
is of consequence in determining the action.”); and Rule 11-702 NMRA (“A witness who
is qualified as an expert by knowledge, skill, experience, training, or education may testify
in the form of an opinion or otherwise if the expert’s scientific, technical, or other
specialized knowledge will help the trier of fact to understand the evidence or to determine
a fact in issue.”).

{13} At the hearing on the motion in limine, Defendant argued that he anticipated Cabrera
and Tan’s testimony would interpret cell phone-related records, which he believed required
a qualified expert. The district court did not rule on the motion in limine, but instead took
it under advisement and told the parties it would decide the motion during trial based on the
foundation laid and the exhibits offered.

{14} Both Cabrera and Tan testified at trial. Cabrera explained that as an employee in
Cricket’s legal compliance division, his job was to “pull the raw data for telephone calls for
Cricket [C]ommunications and format it so law enforcement can read the records.” The State
introduced two exhibits through Cabrera: a call detail report record for Defendant’s cell
phone number listing all incoming and outgoing calls made between November 18, 2011 and
December 5, 2011 (call detail report record), and a cell tower report listing all Albuquerque
cell towers and the longitude and latitude coordinates for each cell tower (cell tower report).
After Cabrera briefly explained what each exhibit was, Defendant objected, explaining that
the State had not “established that . . . Cabrera [was] anything other than the custodian of

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records” and that it appeared that the State was beginning to ask Cabrera “to interpret the
meaning of the records.” Defendant contended that such testimony was “technical” and had
to be introduced “through an expert witness and not through a lay witness.” The State
responded that Cabrera was only going to testify that the cell tower report “shows the
locations of the cell towers around town,” about which Cabrera had personal knowledge
“[f]rom the records.” The district court sustained the objection, instructing the State to lay
a foundation, and explained that if Cabrera could testify about the contents of the records
“based on his experience,” the testimony would be allowed.

{15} The State then elicited testimony from Cabrera establishing that he had seen the cell
tower reports before and knew how to read them. He explained that the records give the
latitude and longitude for each cell tower, and that it did not take any scientific expertise to
map the location of the cell tower from those coordinates because a simple Google search
“will map it for you.” Cabrera then described how a cell phone connects with a cell tower
when a wireless customer places a cell phone call. Cabrera explained that each cell tower
provides a signal to three separate sectors, each covering 120 degrees of the area around the
cell tower, which might provide a general indication of where a cell phone is located when
it connects to the cell tower. Cabrera testified that a cell phone will connect to the cell tower
with the strongest signal and that the radius of a cell tower’s range depends on the terrain
and other factors, but the range is generally about one mile in an urban area like
Albuquerque. Defense counsel did not object again during Cabrera’s testimony, and only
asked two questions on cross examination: whether Cabrera knew about the accuracy of the
longitude and latitude data provided for the cell towers, and whether there was any way to
determine the distance between a cell phone and the cell tower to which it connects. Cabrera
explained that the cell tower coordinates were pulled from engineer reports, which he did
not produce himself. He also testified that there is no way to determine how far a cell phone
is from a cell tower when it connects to place a call.

{16} The State’s second witness, Tan, was an employee of Rocky Mountain Information
Network. Tan’s job was to create visual depictions of information provided by law
enforcement agencies. Tan compiled information from Defendant’s cell phone records onto
a map that showed the location of the cell towers used for each call using software called
“Tracing Trips.” Tan created a second map that showed the cell tower and the sector to
which each call connected. Tan also created a timeline of incoming and outgoing calls
between Defendant’s and Kinney’s cell phones. Tan did not testify about Defendant’s
location based on the maps she created. However, the maps showed that the cell signal from
Defendant’s cell phone was received and recorded by cell towers near the Downtown and
Old Town areas of Albuquerque around the time that the APD officers believed Kinney and
Frost were killed. Defense counsel did not object at any point during Tan’s testimony.

{17} The jury found Defendant guilty of: one count of first-degree murder (willful and
deliberate) for the death of Kinney; one count of second-degree murder for the death of
Frost; two counts of first-degree felony murder; two counts of shooting at or from a motor
vehicle causing great bodily harm; one count of tampering with evidence; one count of

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breaking and entering; and one count of possession of heroin. After sentencing, the district
court entered its judgment, sentence, and commitment. With respect to Kinney’s murder, the
district court merged the convictions for first-degree murder and felony murder and vacated
the conviction for shooting at a motor vehicle on double jeopardy grounds. With respect to
the killing of Frost, the district court merged the convictions for second-degree murder and
shooting at a motor vehicle with the felony murder conviction. Accordingly, the district court
sentenced Defendant to two life sentences, one for each first-degree murder conviction, plus
an additional twelve and a half years, including two habitual offender enhancements on the
remaining convictions for tampering with evidence, breaking and entering, and possession
of heroin.

{18} We address each of Defendant’s challenges to his convictions below.

II. DISCUSSION

A. Admission of Cell Phone-Related Testimony

{19} Defendant argues that the district court should not have permitted the State to admit
cell phone-related testimony because the State did not qualify Cabrera and Tan as experts.
Defendant argues further that the district court erred by admitting the testimony because it
entailed specialized knowledge and, thus, a qualified expert witness was necessary. The
State responds that the district court did not abuse its discretion in admitting lay testimony
by Cabrera and Tan because their cell phone-related testimony did not involve any scientific,
technical, or otherwise specialized knowledge.

1. Preservation

{20} As a preliminary matter, we must determine whether the issue was preserved when
Defendant filed a motion in limine and objected to Cabrera’s testimony at trial. “In order to
preserve an issue for appeal, a defendant must make a timely objection that specifically
apprises the trial court of the nature of the claimed error and invokes an intelligent ruling
thereon.” State v. Walters, 2007-NMSC-050, ¶ 18, 142 N.M. 644, 168 P.3d 1068 (internal
quotation marks and citations omitted); see Rule 11-103(A)(1)(a)-(b) NMRA (“A party may
claim error in a ruling to admit or exclude evidence only if the error affects a substantial
right of the party and . . . if the ruling admits evidence, the party, on the record . . . timely
objects or moves to strike, and . . . states the specific ground, unless it was apparent from the
context[.]”). “[I]t is the responsibility of counsel at trial to elicit a definitive ruling on an
objection from the court.” State v. Lucero, 1993-NMSC-064, ¶ 11, 116 N.M. 450, 863 P.2d
1071.

{21} Defendant initially objected to the admission of Cabrera and Tan’s testimony by
filing a motion in limine. The district court did not rule on the motion in limine, but took it
under advisement. Then, at trial, Defendant objected to Cabrera’s testimony on the basis that
it required a qualified expert. The district court sustained Defendant’s objection and ordered

6
the State to lay a foundation for Cabrera’s “personal knowledge or his experience.”
Defendant properly preserved the issue with respect to Cabrera’s testimony because the
objection was made in a timely fashion, the nature of the objection was clear, and the district
court issued a ruling upon the objection.

{22} The challenge to Tan’s testimony, however, was not preserved. While Defendant
asserted a specific objection to Cabrera’s trial testimony, and thus preserved the issue,
Defendant failed to object to Tan’s testimony at trial. As a result, Defendant’s objection to
Tan’s testimony rested solely on the motion in limine, a general objection, on which the
district court judge did not rule.

{23} The motion in limine did not apprise either the opposing party or the district court
to any specific alleged error in Tan’s actual trial testimony. See State v. Leyva, 2011-NMSC-
009, ¶ 36, 149 N.M. 435, 250 P.3d 861 (concluding that “[w]e require parties to assert the
legal principle upon which their claims are based and to develop the facts in the trial court
primarily for two reasons: (1) to alert the trial court to a claim of error so that it has an
opportunity to correct any mistake, and (2) to give the opposing party a fair opportunity to
respond and show why the court should rule against the objector.” (internal quotation marks
and citation omitted)). As the Court of Appeals stated in Kysar v. BP American Production
Co., 2012-NMCA-036, ¶ 23, 273 P.3d 867, “[a] motion in limine is merely a preliminary
determination by a district court regarding the admissibility of evidence. . . . [M]otions in
limine are interlocutory orders which are subject to reconsideration by the district court
during the trial.” (Citations omitted). The Court of Appeals continued that “[i]t is often
impossible to make definitive evidentiary rulings prior to trial because admissibility will
depend on the state of the evidence at the time of the ruling. As the trial unfolds, . . . it [may
be] proper for the district court to revisit, and modify or reverse its prior ruling.” Id. (internal
quotation marks and citation omitted). “[M]otions in limine seeking advance rulings on the
admissibility of evidence are fraught with problems because they are necessarily based upon
an alleged set of facts rather than the actual testimony which the trial court would have
before it at trial in order to make its ruling.” Id. (alteration in original) (citations omitted).
By their very nature, motions in limine do not sufficiently preserve an issue because the
rulings on them are subject to change, depending on the nature of the relevant evidence at
trial. Thus, Defendant failed to preserve his objection to Tan’s testimony.

{24} We review the admission of an unpreserved claim only if the admission of the
challenged evidence is plain error and it affects a substantial right. Rule 11-103(E). To
constitute plain error, it must give rise to “an injustice that creates grave doubts concerning
the validity of the verdict.” State v. Begay, 1998-NMSC-029, ¶ 21, 125 N.M. 541, 964 P.2d
102 (internal quotation marks and citation omitted). The admission of Tan’s testimony does
not rise to a level that creates a grave doubt as to the validity of the verdict. For these
reasons, we do not find plain error that would compel us to review the admissibility of Tan’s
testimony.

2. Admissibility of Cabrera’s testimony

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{25} The central issue before us is whether Cabrera should have been qualified as an
expert to testify regarding cell phone-related evidence. While cell phone-related testimony
is increasingly common evidence in trials, see generally Aaron Blank, The Limitations and
Admissibility of Using Historical Cellular Site Data To Track the Location of a Cellular
Phone, 18 Rich. J. L. & Tech. 3 (2011); Alexandra Wells, Ping! The Admissibility of
Cellular Records To Track Criminal Defendants, 33 St. Louis U. Pub. L. Rev. 487 (2014),
the parameters of its admission are a matter of first impression in New Mexico.

{26} “[T]he threshold question of whether the trial court applied the correct evidentiary
rule or standard is subject to de novo review on appeal.” State v. Torres, 1999-NMSC-010,
¶ 28, 127 N.M. 20, 976 P.2d 20. “[T]he admission of expert testimony or other scientific
evidence is . . . within the sound discretion of the trial court and will not be reversed absent
a showing of abuse of that discretion.” State v. Alberico, 1993-NMSC-047, ¶ 58, 116 N.M.
156, 861 P.2d 192.

{27} We consider Cabrera’s trial testimony to fall within two distinct categories. The first
category of Cabrera’s testimony includes his testimony regarding the contents of two cell
phone-related records, namely a call detail report record and a cell tower report listing the
location of all cell towers in the city of Albuquerque. The second category includes
testimony pertaining to how cell towers operate. We address each in turn.

{28} The State argues that the first category of cell phone-related testimony does not
require a qualified expert. Many other jurisdictions have addressed this issue and concluded
that information in a cell detail report or map showing the location of cell towers does not
require a qualified expert. See, e.g., Collins v. State, 172 So. 3d 724, 743 (Miss. 2015) (en
banc) (The Mississippi Supreme Court held that testimony that simply describes the
information in a call detail report record or “informs the jury as to the location of
cell . . . towers” is properly lay testimony when it is based upon the personal observations
of the witness.); State v. Blurton, 484 S.W.3d 758, 771-72 (Mo. 2016) (en banc) (The
Missouri Supreme Court held that a lay witness may testify as to the location of different cell
towers “pinged” by the defendant’s cell phone throughout the night so long as the State did
not try to pinpoint the precise location of the defendant’s “cell phone in relation to the cell
tower to which [the defendant’s] cell phone was connected at the time the calls were
made[.]”); Burnside v. State, 352 P.3d 627, 636 (Nev. 2015) (en banc) (The Supreme Court
of Nevada held that “a map showing the locations of the cell phone sites that handled calls
from the cell phones registered to [the defendants] during the time period relevant to the
murder,” which also included the time of each call and testimony which merely described
the locations of cell towers, was not expert testimony.).

{29} In the instant case, we take a different approach. The first category of Cabrera’s
testimony was not opinion testimony. Rather, Cabrera’s testimony regarding the call detail
report record and the cell tower report was testimony about the contents and meaning of
business records for which he was qualified as a custodian. Under Rule 11-803(6) NMRA,
a record of an act, event, condition, opinion, or diagnosis is not excluded by the hearsay rule

8
if:

(a) the record was made at or near the time by—or from
information transmitted by—someone with knowledge,

(b) the record was kept in the course of a regularly conducted
activity of a business, institution, organization, occupation, or calling,
whether or not for profit,

(c) making the record was a regular practice of that activity, and

(d) all these conditions are shown by the testimony of the
custodian or another qualified witness, or by a certification that complies
with Rule 11-902(11) or (12) NMRA or with a statute permitting
certification.

As a result, neither Rule 11-701 NMRA nor Rule 11-702 needed to be satisfied.

{30} The State laid an adequate evidentiary foundation for Cabrera, the records custodian,
to testify to the contents of the business records. Rule 11-803(6). Cabrera testified that the
data in the call detail report record was captured by a computer at or near the time of
occurrence of a matter set forth in the cell phone records. He further testified that the raw
data, documents, and records were created and kept in the usual course of regular business
activity. The defense counsel declined to object.

{31} With regard to the admissibility of the business records, under the right-for-any-
reason doctrine, we uphold the district court’s decision that the contents of the business
records were properly admitted as business records. State v. Vargas, 2008-NMSC-019, ¶ 8,
143 N.M. 692, 181 P.3d 684 (“Under the right for any reason doctrine, we may affirm the
district court’s order on grounds not relied upon by the district court if those grounds do not
require us to look beyond the factual allegations that were raised and considered below.”
(internal quotation marks and citation omitted)). Because Cabrera testified to the contents
and meaning of business records for which he was a custodian under Rule 11-803(6), the
testimony was admissible.

{32} In addition, the district court could have taken judicial notice of the cell tower report
because it included the latitude and longitude of all cell towers in the city of Albuquerque.
The latitude and longitude points on a globe or valid map are a proper subject of judicial
notice. Rule 11-201(B)(2) NMRA (“The court may judicially notice a fact that is not subject
to reasonable dispute because it . . . can be accurately and readily determined from sources
whose accuracy cannot reasonably be questioned . . . .”); see also Trujillo v. Dimas, 1956-
NMSC-043, ¶ 42, 61 N.M. 235, 297 P.2d 1060 (holding that the district court could take
judicial notice of the location of a county and the location of the New Mexico Principal
Meridian in an action involving the validity of tax sales); Carlsbad Broad. Corp. v. Bureau

9
of Revenue, 1947-NMSC-047, ¶ 8, 51 N.M. 360, 184 P.2d 434 (taking notice that “Texas
state lines are about 70 miles east and 30 miles south of Carlsbad,” New Mexico); United
States v. Piggie, 622 F.2d 486, 488 (10th Cir. 1980) (“Geography has long been peculiarly
susceptible to judicial notice for the obvious reason that geographic locations are facts which
are not generally controversial . . . .”); Rozelle v. Barnard, 1963-NMSC-101, ¶ 2, 72 N.M.
182, 382 P.2d 180 (“This court, since early territorial days, has expressed the view that
courts will take judicial notice of matters of common and general knowledge.”).

{33} Had the State limited Cabrera’s testimony to just the call detail report record and the
cell tower report, we would find no error. However, Cabrera proceeded to testify about how
cell towers operate and interact with cell signals to locate the general origin of a cell phone
call. This second category of testimony requires the “scientific, technical, or other
specialized knowledge” to assist “the trier of fact to understand the evidence or determine
a fact in issue.” Rule 11-702. “This Court has discerned three prerequisites in Rule 11-702
for the admission of expert testimony: (1) experts must be qualified; (2) their testimony must
assist the trier of fact; and (3) their testimony must be limited to the area of scientific,
technical, or other specialized knowledge in which they are qualified.” See Torres, 1999-
NMSC-010, ¶ 23.

{34} In essence, a cell phone functions as a two-way radio that continually transmits and
collects signals from cell towers throughout a cell network. United States v. Hill, 818 F.3d
289, 295 (7th Cir. 2016); see Blank, supra, at **5-6. Each cell tower covers a geographic
area, and the connection between the cell phone and the cell tower can be influenced by a
number of factors, including “[t]he number of antennas operating on the cell [tower], the
height of the antennas, topography of the surrounding land, and obstructions (both natural
and man-made).” Blank, supra, at *5. When a call is made, the cell phone typically connects
to the cell tower with the strongest signal. Id. at *6. However, cell towers often overlap in
coverage so that a single cell phone call might simultaneously connect to more than one
tower. Id. Although the vicinity of the cell phone user is a substantial factor in determining
the cell tower with which the cell phone connects, the geography, topography, angle and
number of antennas on the cell tower sites, and characteristics of the specific phone impact
the analysis. Id. at *7.

{35} In our view, understanding how cell towers operate requires a duly qualified expert
to explain the technical nature of the many variables that influence how cell tower signals
connect with cell phones. Rule 11-702. To conclude otherwise would subvert the reliability
requirements of our rules of evidence. See Torres, 1999-NMSC-010, ¶ 42 (noting that
without the proper foundation establishing the knowledge, skill, experience, training, or
education of the witness, the reliability of this type of testimony is undermined). Qualifying
an expert ensures that the testimony “will help the trier of fact to understand the evidence
or to determine a fact in issue,” Rule 11-702, rather than “confus[e] the issues [or] mislead[]
the jury.” Rule 11-403 NMRA.

{36} Cabrera’s testimony regarding how cell towers operate required a technical analysis

10
of the many factors that influence the strength of cell signals and the towers’ connection with
cell phones in order to ascertain the general location of Defendant’s phone at a particular
point in time. The State failed to establish that Cabrera had the specialized knowledge and
experience to reliably explain how the cell tower operated in determining the general
location of Defendant’s cell phone. This type of cell phone-related information is highly
technical and requires specialized knowledge of a qualified expert under Rule 11-702.

{37} Other jurisdictions have also determined that explaining how cell towers record and
receive signals is clearly within the realm of expert testimony. United States v. Yeley-Davis,
632 F.3d 673, 684 (10th Cir. 2011); see also Hill, 818 F.3d at 296 (concluding that
“statements about how cell . . . towers operate . . . fit[] easily into the category of expert
testimony”). Courts have explicitly held that pinpointing a cell phone in relation to a cell
tower involves “specialized knowledge not readily accessible to any ordinary person.” Yeley-
Davis, 632 F.3d at 684. The Nevada Supreme Court determined that testimony explaining
that cell signals usually transmit from the nearest cell tower, except when the site is too busy
or there is an obstruction, was expert testimony. Burnside, 352 P.3d at 636-37. Similarly, the
Missouri Court of Appeals concluded that expert testimony is required to locate “the area
in which [the defendant’s cell] phone must have been to have connected to a particular cell
site—i.e., to proffer testimony actually probative of whether [the defendant] was in one area
rather than the other—required analysis of many variables that influence cell site signal
strength.” State v. Patton, 419 S.W.3d 125, 132 (Mo. Ct. App. 2013).

{38} It is incumbent upon the district court, as gatekeeper, to ensure the reliability of the
testimony presented to the jury. We therefore conclude that Cabrera should have been
identified and properly qualified as an expert before testifying about how cell towers interact
with cell signals to identify the location of a cell phone call because this information
required specialized knowledge. Therefore, because the State did not identify Cabrera as a
qualified expert, the district court did not assess the evidentiary reliability of his testimony.
As a result, the district court erred in admitting this testimony at trial.

{39} “Improperly admitted evidence is not grounds for a new trial unless the error is
determined to be harmful.” State v. Tollardo, 2012-NMSC-008, ¶ 25, 275 P.3d 110 (citations
omitted). “We now analyze whether this evidentiary error was merely harmless, in which
case we could overlook it, or prejudicial, requiring reversal.” State v. Leyba,
2012-NMSC-037, ¶ 23, 289 P.3d 1215.

{40} “[W]e apply the non-constitutional error standard for harmless error” because
admitting the cell tower evidence was an evidentiary error. Id. ¶ 24; see also State v.
Tollardo, 2012-NMSC-008, ¶ 36, 275 P.3d 110. While a constitutional error requires only
a reasonable possibility of prejudice for reversal, “[a] non-constitutional error requires
reversal when there is a ‘reasonable probability that misconduct contributed to the
[defendant’s] conviction.’ ” Leyba, 2012-NMSC-037, ¶ 24 (second alteration in original)
(emphasis added) (quoting Tollardo, 2012-NMSC-008, ¶ 31). To determine “the probable
effect of an evidentiary error,” we assess all of the circumstances surrounding the error.

11
Leyba, 2012-NMSC-037, ¶ 24 (internal quotation marks and citation omitted). In doing so,
“[w]e examine the error itself, including the source of the error and the emphasis placed on
the error at trial.” Id. “To put the error in context, we often look at the other, non-
objectionable evidence of guilt . . . to evaluate what role the error played at trial.” Id. We
conduct this analysis on a case-by-case basis. Id.

{41} Although the State used Cabrera’s testimony to discredit Defendant’s statements to
the APD about his location on the night of the murders, Tan’s testimony, to which there was
no objection, summarized the information contained within the call detail report record and
the cell tower report produced by Cabrera to show the longitude and latitude of cell phone
towers on a map. Under the non-constitutional standard for harmless error, we conclude that
it was harmless error in admitting Cabrera’s testimony regarding how cell towers operate
because the call detail report record and the cell tower report which were used to create the
maps were properly admitted. Additionally, the calls between Defendant and Kinney are
inculpatory, as are the location of the towers when these calls were placed. It is also harmless
error with respect to Defendant’s convictions for tampering with evidence and breaking and
entering because Cabrera’s testimony did not relate to Defendant’s convictions for conduct
occurring at a different time and location. As a result, Defendant failed to establish that there
is a reasonable probability that the jury would have had a reasonable doubt concerning his
guilt as a result.

B. Sufficiency of the Evidence

{42} Defendant argues that there was insufficient evidence to support his convictions. “In
reviewing the sufficiency of the evidence, we must view the evidence in the light most
favorable to the guilty verdict, indulging all reasonable inferences and resolving all conflicts
in the evidence in favor of the verdict.” State v. Cunningham, 2000-NMSC-009, ¶ 26, 128
N.M. 711, 998 P.2d 176. “[T]he relevant question is whether, after viewing the evidence in
the light most favorable to the prosecution, any rational trier of fact could have found the
essential elements of the crime beyond a reasonable doubt.” State v. Garcia,
1992-NMSC-048, ¶ 26, 114 N.M. 269, 837 P.2d 862 (alteration in original) (internal
quotation marks and citation omitted).

1. Defendant’s convictions for first-degree murder

{43} Defendant’s arguments concerning the sufficiency of the evidence to support his
convictions for the crimes committed at Tiguex Park are based on what he views as the
State’s failure to prove identity; that is, that Defendant was the person who committed the
murders. Defendant does not argue that there was insufficient evidence to prove the other
elements of the crime.

{44} Accordingly, we review the evidence to determine whether a rational jury could find
that Defendant perpetrated the murders. The cell phone records show that Defendant and
Kinney were in contact on the night of the murders. As the State points out, the text

12
messages from Kinney to Defendant show that Kinney was upset with Defendant, which
could support an inference of a conflict between the two. The map prepared by Tan shows
that Defendant’s cell phone “pinged” a cell tower in the Old Town area around 4:00 a.m.,
the approximate time when the murders were believed to have occurred. Additionally,
because we consider even erroneously admitted evidence, see Post, 1989-NMCA-090, ¶ 24,
we note that the jury could have inferred that Defendant was in the area at that time based
on Cabrera’s testimony about how a cell phone connects to the cell tower with the strongest
signal. Further, a witness reported seeing Defendant with a firearm only a few hours later
in the parking lot of the restaurant where Montoya worked. And, although Defendant told
Detective Anderson that he stayed home all night and fell asleep by 1:00 a.m. or 2:00 a.m.,
his phone records show that he made and answered cell phone calls to and from Kinney and
others much later than 2:00 a.m. See State v. Flores, 2010-NMSC-002, ¶ 23, 147 N.M. 542,
226 P.3d 641 (“[E]vidence of . . . an attempt to deceive the police may prove consciousness
of guilt.” (internal quotation marks and citations omitted)). This evidence provides a
sufficient basis upon which a jury could find that Defendant was the person who committed
the murders.

2. Defendant’s convictions for tampering with evidence and breaking and entering

{45} Defendant argues under State v. Franklin, 1967-NMSC-151, 78 N.M. 127, 428 P.2d
982 and State v. Boyer, 1985-NMCA-029, 103 N.M. 655, 712 P.2d 1, that there was
insufficient evidence to support his convictions for tampering with evidence and breaking
and entering.

{46} To find Defendant guilty of tampering with evidence, the jury must have found
beyond a reasonable doubt that (1) “[t]he defendant hid a firearm,” and that (2) “[b]y doing
so, the defendant intended to prevent the apprehension, prosecution or conviction of Carlos
Carrillo.” See UJI 14-2241 NMRA. At trial, a witness testified that she was “[a]bsolutely
positive” she saw a gun in Defendant’s hand when he broke into the car at Golden Pride.
Defendant then fled on foot, and when police stopped him soon thereafter, he did not have
a gun. Though Defendant told police that he used his hands to break the window, the jury
could logically infer that he had a gun, which he disposed of on the way from Golden Pride,
and then lied about it to the police. Further, because he had been seen committing a crime
(breaking into the car), the jury could reasonably infer that Defendant hid the gun to prevent
apprehension, prosecution, or conviction of that crime.

{47} We note that State v. Silva requires that evidence showing that a defendant had a gun
and used that gun to commit a crime, combined with a showing that the gun was then
removed from the scene and never recovered, is insufficient to show that the defendant had
the intent required by NMSA 1978, § 30-22-5(A) (2003). 2008-NMSC-051, ¶¶ 17-19, 144
N.M. 815, 192 P.3d 1192, holding modified by State v. Guerra, 2012-NMSC-027, ¶¶ 12-16,
284 P.3d 1076. The Silva Court held that the State must provide either direct evidence of a
specific intent to tamper or evidence of an overt act from which the jury could infer that
intent. 2008-NMSC-051, ¶ 18. Here, the State’s case is supported by a witness’s testimony

13
that she saw Defendant with a gun after the murders were committed, that Defendant left the
scene and was found shortly thereafter with no gun, and that Defendant lied about using his
hand to break the window. This evidence distinguishes this case from those in which the jury
was “effectively asked . . . to speculate that an overt act of . . . hiding [the murder weapon]
had taken place, based solely on the fact that such evidence was never found.” Id. ¶ 19
(alteration and second omission in original) (emphasis added) (internal quotation marks and
citation omitted). There was sufficient evidence to support Defendant’s conviction for
tampering with evidence.

{48} Defendant also contends that there was insufficient evidence to support his
conviction for breaking and entering because he entered to retrieve his own property from
the vehicle. To find Defendant guilty of breaking and entering, the jury was required to find:
(1) “[t]he defendant entered a 2006 Chevrolet 4-door belonging to Shantell Montoya without
permission” and (2) “[t]he entry was obtained by the breaking of the vehicle window.” See
UJI 14-1410 NMRA. As the committee commentary to UJI 14-1410 explains, “New
Mexico’s breaking and entering statute . . . requires no intent to commit a crime upon
entering, only the breaking and entering need be shown.” Therefore, it is immaterial that
Defendant was breaking in to retrieve his own property. A witness from Golden Pride
testified that she saw him break the car window and rummage around inside the car. Further,
Montoya testified that she was mad at him for breaking into her car, supporting the inference
that he did not have permission. Thus, there was sufficient evidence to support the
conviction for breaking and entering.

C. Alleged Prosecutorial Misconduct

{49} Defendant argues under Franklin and Boyer that “the State’s repeated attempts to
admit into evidence the statements by Mario Chavez and . . . Montoya was prosecutorial
misconduct.” The State responds that although defense counsel objected at various points
to the testimony of witnesses Mario Chavez (Chavez) and Montoya, the relief requested at
trial was a limiting instruction, which is granted. Thus, the State argues, there was no basis
for Defendant’s prosecutorial misconduct claim because the limiting instruction cured any
potential prejudice resulting from the alleged misconduct. Further, the State argues,
Defendant failed to preserve his claim of prosecutorial misconduct, and, thus, it is not
properly before the Court. We agree with the State.

{50} “When an issue of prosecutorial misconduct is preserved by a timely objection at
trial, we review the district court’s ruling for abuse of discretion.” State v. Paiz, 2006-
NMCA-144, ¶ 53, 140 N.M. 815, 149 P.3d 579. However, “[i]f no objection was raised, our
review is limited to fundamental error.” Id. “Prosecutorial misconduct rises to the level of
fundamental error when it is so egregious and had such a persuasive and prejudicial effect
on the jury’s verdict that the defendant was deprived of a fair trial.” State v. Allen, 2000-
NMSC-002, ¶ 95, 128 N.M. 482, 994 P.2d 728 (internal quotation marks and citations
omitted).

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{51} Importantly, Defendant made no claim of prosecutorial misconduct at trial. As a
result, the issue was not preserved. Therefore, our review is limited to fundamental error.

{52} Defendant claims that the State introduced evidence in disregard of a district court
order excluding the testimony of Chavez and Montoya. However, the pages to which
Defendant cites in referring to a motion in limine to exclude such evidence are actually a
notice of a trial status conference and a pretrial scheduling order. In fact, there is no motion
in limine to exclude the testimony of Chavez or Montoya anywhere in the record. Thus, the
State did not attempt to admit any evidence which had been previously excluded by the
district court, and therefore, there was no prosecutorial misconduct. As the State points out,
at the close of trial, defense counsel requested, and the jury received, a limiting instruction
as to the scope of the evidence. See State v. Trevino, 1991-NMCA-085, ¶ 20, 113 N.M. 804,
833 P.2d 1170 (“Defendant may not complain on appeal when the specific relief requested
was granted.”). We conclude that there was no prosecutorial misconduct and no error upon
which to grant relief.

D. Cumulative Error

{53} Finally, Defendant argues that the cumulative errors alleged render the verdict
inherently unreliable.“The doctrine of cumulative error applies when multiple errors, which
by themselves do not constitute reversible error, are so serious in the aggregate that they
cumulatively deprive the defendant of a fair trial.” State v. Ortega, 2014-NMSC-017, ¶ 53,
327 P.3d 1076 (internal quotation marks and citation omitted). “The doctrine of cumulative
error is to be strictly applied, and . . . cannot [be] invoke[d] if the record as a whole
demonstrates that [the defendant] received a fair trial.” State v. Samora, 2013-NMSC-038,
¶ 28, 307 P.3d 328 (alterations and omission in original) (internal quotation marks and
citation omitted). Because we find only one error at trial, an error which was harmless, we
reject Defendant’s cumulative error claim, and thus, the doctrine of cumulative error does
not entitle Defendant to further relief. We therefore affirm his convictions.

III. CONCLUSION

{54} For the foregoing reasons, we affirm Defendant’s convictions.

{55} IT IS SO ORDERED.

____________________________________
BARBARA J. VIGIL, Justice

WE CONCUR:

____________________________________
JUDITH K. NAKAMURA, Chief Justice

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____________________________________
PETRA JIMENEZ MAES, Justice

____________________________________
EDWARD L. CHÁVEZ, Justice

____________________________________
CHARLES W. DANIELS, Justice

16