People v. Trivino CA6

CourtCalifornia Court of Appeal
DecidedOctober 16, 2025
DocketH051328
StatusUnpublished

This text of People v. Trivino CA6 (People v. Trivino CA6) is published on Counsel Stack Legal Research, covering California Court of Appeal primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
People v. Trivino CA6, (Cal. Ct. App. 2025).

Opinion

Filed 10/16/25 P. v. Trivino CA6

NOT TO BE PUBLISHED IN OFFICIAL REPORTS California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication or ordered published for purposes of rule 8.1115.

IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA

SIXTH APPELLATE DISTRICT

THE PEOPLE, H051328 (Monterey County Plaintiff and Respondent, Super. Ct. No. 21CR004236)

v.

JOHN SAMUEL THOMAS TRIVINO,

Defendant and Appellant.

A jury convicted defendant John Samuel Thomas Trivino of the willful, deliberate, and premeditated murder of Martin Heredia (Pen. Code,1 § 187, subd. (a); count 1) and conspiracy to commit Heredia’s murder (§§ 182, subd. (a)(1), 187; count 2). The jury found not true allegations attached to count 1 that Trivino personally and intentionally discharged a firearm (§ 12022.53, subd. (c)) and personally and intentionally discharged a firearm resulting in death or great bodily injury (§ 12022.53, subd. (d)). Trivino later pleaded no contest to participation in a criminal street gang (§ 186.22, subd. (a); count 3). The trial court sentenced Trivino to 25 years to life with the possibility of parole on count 1 and 25 years to life with the possibility of parole on count 2,

1 All further unspecified statutory references are to the Penal Code. the latter to run concurrently with the sentence on count 1. The court sentenced Trivino to 90 days in county jail on count 3, and Trivino received credit for the full 90 days. Trivino filed a motion for new trial based on juror misconduct and, in the alternative, requested that the trial court order an evidentiary hearing under Code of Civil Procedure section 237 and release the jurors’ identifying information to allow the parties to investigate potential juror misconduct. The court denied the motion for new trial and declined to order an evidentiary hearing or release juror identifying information. On appeal, Trivino raises three issues. He maintains that his defense counsel at trial provided ineffective assistance by failing to object to the amendment of the information to add the conspiracy charge. In addition, Trivino asserts the trial court abused its discretion by declining to disclose juror identifying information. Finally, Trivino contends the court erred by failing to instruct the jury on aiding and abetting liability. He asks this court to reverse his convictions on counts 1 and 2 and to order the trial court to disclose juror identifying information. For the reasons stated below, we discern no error and affirm the judgment. I. FACTS AND PROCEDURAL BACKGROUND2 A. Facts On June 7, 2016, Trivino, a member of the Norteño criminal street gang in King City known as “San Antonio Gardens” (SAG), was riding in Kendrix Perez’s truck, with Perez, Ulises Silva, and another individual; Perez

2 We set forth the relevant facts from the trial evidence in the light

most favorable to the jury’s verdict. (People v. Luo (2017) 16 Cal.App.5th 663, 668, fn. 2; People v. Campbell (2020) 51 Cal.App.5th 463, 469.) 2 was driving. They saw a van occupied by individuals whom Trivino knew to be members of the Sureño criminal street gang.3 Trivino saw the same van “[m]inutes later” parked outside a residence on Cambridge Avenue and saw Sureño gang members at the residence. After driving by the residence on Cambridge, Perez parked the truck on Bedford Avenue, a neighboring street. Trivino and Silva exited Perez’s truck and walked to the corner, where they could see Heredia’s residence on Cambridge and a group of Sureños. Trivino fired the entire magazine of a nine-millimeter gun at the opposing gang members. Trivino and Silva ran back to Perez’s truck after the shooting, and Perez drove them away from the scene. Heredia died from the gunshot wounds, and his cause of death was ruled a homicide. B. Preliminary Hearing and Charges On June 1, 2021, the Monterey County District Attorney filed a complaint charging Trivino with willful, deliberate, and premeditated murder of Heredia (§ 187, subd. (a); count 1). The complaint alleged as to count 1 that Trivino personally and intentionally discharged a firearm and, in doing so, caused great bodily injury and death (§ 12022.53, subds. (c) & (d)), and that Trivino committed murder for the benefit of, at the direction of, and in association with a criminal street gang, namely, the Norteño criminal street gang, with the specific intent to promote, further, and assist in criminal conduct by gang members (§ 186.22, subd. (b)(1)).

3 In King City, the Sureños are rivals of SAG. Although Heredia was not identified by the parties as a Sureño gang member, Heredia’s “friends were all known [Sureño] gang members” who were part of the Sureño subset known as “Mexican Klan Locos” (or “MKL”), and Heredia was with Sureño gang members in the van and at his residence. 3 On July 15, 2021, the trial court presided over a preliminary hearing. The district attorney presented testimony from King City Police Officers Brennan Lux, Dominic Mercurio, and William Clark, and King City Police Detective Joshue Partida. Officer Lux observed evidence of gunfire damage to Heredia’s residence and reviewed surveillance video footage showing Heredia retrieving food from a van, returning to the residence, being hit by gunfire, and falling into the garage. Lux did not know how many rounds were discharged during the shooting and was not able to recall without reviewing the video whether the surveillance camera captured any footage of people or vehicles on the street adjacent to Heredia’s residence. The prosecution did not introduce the surveillance video footage into evidence at the preliminary hearing. Officer Mercurio located 10 nine-millimeter cartridge casings in a two- yard radius approximately 64 feet from Heredia’s residence. When asked on cross-examination whether he could tell from the markings on the recovered cartridge casings if the bullets had been fired from one gun, Mercurio answered in the negative, noting that he is “not an expert in that field.” In 2021, Officer Clark performed a cold case review of Heredia’s 2016 homicide. After Trivino was arrested in 2021, Clark placed Trivino into a cell with another individual, identified as JW-1 (referred to as “JP1” in the parties’ appellate briefs). Clark monitored the communications between Trivino and JW-1. Trivino identified himself to JW-1 as a Norteño gang member and recounted to JW-1 the events of June 7, 2016. Trivino stated he and “a younger homey, who was currently in prison” exited Perez’s truck.

4 Perez stayed behind with the truck. Trivino had a nine-millimeter gun and emptied “the whole clip” shooting at “a scrap from far away.”4 Detective Partida interviewed another person, referred to at the preliminary hearing as John Doe, about the 2016 homicide. Doe told Partida he was a member of SAG in 2016 and had personal knowledge of Heredia’s homicide. Doe told Partida that he had spoken with Trivino about the homicide at a party at Trivino’s residence two or three days after the shooting. Trivino, Silva, and Perez each separately told Doe that they had committed the homicide. Doe told Partida that “they were bragging about the homicide because it was gang related.” Trivino told Doe that Trivino, Silva, and Perez had been “driving around the city looking for other rival gang members” and, later, Trivino was across the street from Heredia’s residence “waiting for someone to come out of the residence” “[b]ecause they were trying to kill rival gang members.” Trivino told Doe that Trivino shot Heredia from across the street using a nine-millimeter gun before Trivino and Silva ran back to Perez’s truck and left the scene.

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People v. Trivino CA6, Counsel Stack Legal Research, https://law.counselstack.com/opinion/people-v-trivino-ca6-calctapp-2025.