Maximiliano Gazca v. the State of Texas

Texas Court of Appeals, 4th District (San Antonio)·Decided June 17, 2026·No. 04-24-00392-CR·Published

Opinion

Fourth Court of Appeals

San Antonio, Texas

OPINION

No. 04-24-00392-CR

Maximiliano GAZCA,

Appellant

v.

The STATE of Texas,

Appellee

From the 381st Judicial District Court, Starr County, Texas Trial Court No. 20-CR-119 Honorable Jose Luis Garza, Judge Presiding

Opinion by: Velia J. Meza, Justice

Sitting: Rebeca C. Martinez, Chief Justice H. Todd McCray, Justice

Velia J. Meza, Justice

Delivered and Filed: June 17, 2026 AFFIRMED A jury convicted Maximiliano Gazca of murder and assessed punishment at forty years’

confinement in the Texas Department of Criminal Justice, Institutional Division. The trial court imposed the sentence consistent with the verdict. In his first point of error, Gazca argues the trial court abused its discretion by admitting the testimony of the State’s crime-scene reconstruction

expert, asserting the expert’s opinions were inadmissible ipse dixit 1 under Rule 702 and Kelly. Second, he argues the court erred in denying his motion for new trial based on alleged juror misconduct—specifically, a juror’s purported failure to disclose a relationship with a person connected to the case and, separately, the juror’s alleged prohibited contact with that person after the close of evidence. As the record and governing law show, Gazca did not preserve any challenge to the reliability of the expert’s testimony; his first issue therefore presents nothing for our review. As to the second issue, the motion for new trial was filed without affidavits or other competent evidence establishing facts outside the record, and the trial court was free to disbelieve the unsworn allegations of misconduct. Because the record supports the trial court’s decision to deny the motion for new trial, the court did not abuse its discretion. We affirm.

BACKGROUND 2

Over six days of trial, the jury in Starr County heard extensive evidence concerning the shooting death of Antonio “Tony” Aguilera. The State introduced eyewitness accounts, physical evidence, and expert testimony to support its theory that Gazca intentionally fired nineteen shots at Aguilera, striking him sixteen times. Investigating officers described their response to the scene, the collection of physical evidence—including a cell phone—and the subsequent recovery of the firearm from Gazca’s residence.

Gazca, however, testified that he acted in self-defense. He stated that he heard his sister screaming outside, saw Aguilera walking onto the property, and ordered him to leave. According to Gazca, when Aguilera refused, he went inside the house, “got [his] gun, loaded it, [and] shot three times...” The jury ultimately evaluated these competing theories in reaching its verdict.

1 Ipse dixit is a Latin term that translates to “he himself said it.” See Ipse Dixit, BLACK’S LAW DICTIONARY (12th ed. 2024). 2 The record spans forty-seven volumes and contains hundreds of exhibits; we recount only those facts necessary to resolve the issues presented on appeal.

To establish why Aguilera was on Gazca’s property at the time of the shooting, the State presented testimony from Aguilera’s mother, Ana Maria Cortez. She explained that Aguilera had three daughters and was living with his partner, Selene Yajaira Garza, in a rented home in El Arroyo near Rio Grande City. On the afternoon of July 4, 2020, Cortez was working as a provider in La Victoria when Garza dropped Aguilera off around 3:30 p.m. Aguilera appeared sad and crying and told her Garza had left him. After Cortez finished work at 4:00 p.m., she drove Aguilera toward his home, but as they approached Garciasville, Garza called and asked him to come to her family’s (Gazcas’) residence instead. Cortez drove Aguilera to the Gazca residence and parked near the entrance.

Cortez testified that she walked with Aguilera toward the entrance after Garza insisted he go with her inside. Cortez then returned to her truck, leaving Garza and Aguilera talking outside. Moments later, Cortez heard what sounded like fireworks, ran toward the house, and found her son lying face down on the ground. She saw Garza and Gazca standing on the porch. As Cortez approached, Aguilera briefly lifted his head and said “Mommy, Mommy” before Gazca shot him again multiple times. As Cortez attempted to reach her son, Gazca pointed a gun at her and threatened to shoot if she came closer, causing her to retreat. Cortez ran back to her truck to call 911. She identified Gazca in court as the person who shot Aguilera.

To corroborate the communications occurring before Aguilera reached the property, the State next presented Special Agent Joseph Mirino, a digital forensic examiner with Homeland Security Investigations. After describing his experience and qualifications, he explained that he conducted the forensic extraction of a Motorola Moto E cellphone using Cellebrite. Mirino described Cellebrite as a forensic tool that creates a one-way transfer of data from the device to a

forensic workstation, ensuring that information flows only from the phone to the examiner’s system and thereby preserving data integrity.

Mirino testified that the extracted data included a TextNow conversation occurring on July 4, 2020, between the phone’s user—identified as Selene Garza—and a contact saved as “mi corazon.” He explained that TextNow functions like standard SMS messaging but uses internet data rather than cellular carrier service. The Cellebrite report displayed messages and audio clips in chronological order and automatically converted timestamps from UTC to Central Time.

The broader record reflects that approximately an hour before the shooting, the text communications between Garza and Aguilera were hostile. Mirino testified the conversation began at 3:44 p.m., when “mi corazon” sent an incoming message to Garza’s phone. The exchange included a mixture of text messages and short audio clips, which Mirino identified as either incoming or outgoing between the two devices. Several incoming messages from “mi corazon” contained profanity, insults, and derogatory language, including “Fuck you,” “ungrateful,” and “Don’t text or call.” Other messages consisted of repeated “Bye” or “Bye-bye” texts. Mirino also played multiple outgoing audio messages sent from Garza’s device between 3:45 p.m. and 3:51 p.m., which were translated for the jury.

The record reflects that at approximately 3:54 p.m., Garza’s tone shifted and she began asking Aguilera to “fix this.” Aguilera responded by asking her for money, and Garza eventually agreed to give him money if he came to the residence where she was staying with her mother and brother. At 4:25 p.m., Mirino testified that TextNow incoming messages to Garza’s phone read, “I’m almost there,” and “at your house.” Mirino concluded his testimony by affirming that the TextNow messages and audio files extracted from the device accurately reflected the entire

exchange. According to the custodian of records who testified at trial, the 911 call was received at 4:28 p.m., shortly after the shooting began.

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Maximiliano Gazca v. the State of Texas, (Tex. Ct. App. 2026).

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