People v. Zapata

CourtCalifornia Court of Appeal
DecidedFebruary 10, 2026
DocketD084024
StatusPublished

This text of People v. Zapata (People v. Zapata) 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. Zapata, (Cal. Ct. App. 2026).

Opinion

Filed 2/10/26 CERTIFIED FOR PUBLICATION

COURT OF APPEAL, FOURTH APPELLATE DISTRICT

DIVISION ONE

STATE OF CALIFORNIA

THE PEOPLE, D084024

Plaintiff and Respondent,

v. (Super. Ct. No. SWF1502085)

JASON JOHNOMAR ZAPATA,

Defendant and Appellant.

APPEAL from a judgment of the Superior Court of Riverside County, John M. Davis, Judge. Reversed and remanded. Joseph Doyle, under appointment by the Court of Appeal, for Defendant and Appellant. Rob Bonta, Attorney General, Lance E. Winters, Chief Assistant Attorney General, Charles C. Ragland, Assistant Attorney General, Arlene A. Sevidal and Randall D. Einhorn, Deputy Attorneys General, for Plaintiff and Respondent. I. INTRODUCTION During what is commonly known as a Perkins operation, Jason Johnomar Zapata admitted to two undercover officers that he murdered

Justin Triplett. 1 A jury who heard a recording of Zapata’s confession convicted Zapata of second degree murder. On appeal, Zapata argues the

trial court’s admission of his statements violated Miranda 2 because he previously invoked his right to an attorney, he did not waive that right when he spoke with the undercover agents, and the involvement of a known law enforcement officer transformed the operation into a custodial interrogation. We agree. When a suspect invokes and does not waive the right to counsel, and a known law enforcement officer continues to “stimulate” a Perkins operation in a manner that amounts to a custodial interrogation, the suspect’s resulting incriminating statements are inadmissible. Because the admission of Zapata’s statements was prejudicial, we reverse and remand for further proceedings. II. BACKGROUND A. Perkins Operation Justin Tripplett was killed on September 22, 2014. Suspecting Zapata as the perpetrator, a Riverside County Sherriff’s deputy orchestrated a Perkins operation approximately one year later while Zapata was in custody for charges unrelated to Triplett’s killing. The deputy placed Zapata in a

1 A “Perkins operation” is when an undercover operative is placed in a cell with the suspect to obtain information from the suspect. The term derives its name from Illinois v. Perkins (1990) 496 U.S. 292 (Perkins). 2 Miranda v. Arizona (1966) 384 U.S. 436 (Miranda). 2 holding cell for approximately three hours and 20 minutes with two law enforcement agents posing as inmates. The deputy recorded the operation and monitored it from nearby, contacting Zapata approximately three times in order to “stimulat[e]” conversation between Zapata and the agents. When undercover agents questioned Zapata about Triplett’s murder, Zapata initially denied being involved. About halfway through the operation, the deputy removed Zapata from the cell for a fake lineup, falsely telling Zapata that a witness identified him as Triplett’s killer. During that process, the deputy asked Zapata if he wanted to discuss the murder, and Zapata invoked his right to counsel, stating he wanted a lawyer before any further questioning occurred. After the lineup, the deputy did not provide Zapata with a lawyer. Instead, he returned Zapata to the holding cell, announcing that he was charging Zapata with murder. The two undercover agents heard the deputy mention the murder charge, and they immediately began asking Zapata about it after the deputy left. Zapata ultimately admitted killing Triplett after the agents continued to press him about the killing. A few months later, the Riverside District Attorney’s office charged Zapata with Triplett’s

murder (Pen. Code, 3 § 187, subd. (a)), alleging that he personally used a firearm causing great bodily injury or death (§ 12022.53, subd. (d)). B. Trial Proceedings 1. Zapata’s Motion to Exclude

During his trial in 2023, 4 Zapata moved to exclude his statements to the undercover agents, arguing the Perkins operation violated Miranda. In

3 All further undesignated statutory references are to the Penal Code. 4 Trial was continued numerous times due to the parties’ requests and the COVID-19 pandemic. 3 assessing the motion, the trial court reviewed an audio recording and transcript of the portion of the operation where Zapata confessed. In that recording, one of the agents asked Zapata if he “smoke[d Triplett] during the day,” and Zapata responded, “[i]t was during the day, it was at his house, at his apartment and shit.” Zapata stated Triplett “got hit like 10 times,” and that he used his .40 caliber Smith & Wesson that he discarded and later reported stolen. Zapata and the agents also discussed potential evidence, with Zapata twice stating he was “worried about the lineup.” In addition, the trial court heard testimony from both Zapata and the deputy who conducted the Perkins operation. According to Zapata, he believed he was in imminent danger while in the holding cell with the two agents, so he lied to them and told them what they wanted to hear. Addressing the lineup tactic, the deputy described it this way: It was to make [Zapata] believe that there was a lineup occurring, causing, typically causing -- and in this case as well, as per the transcript -- him to have concern about the lineup, which is what it did. We saw that. We heard it earlier. We see in the transcript it caused him a lot of concern. It caused him to want to talk to, he thought, [ ] other inmates about how to prepare for this. (Italics added.)

The trial court denied Zapata’s motion and admitted the portion of the audio recording where Zapata described killing Triplett and discussed the evidence. 2. Prosecution Evidence Triplett lived in the Portofino apartment complex in Temecula. On September 22, 2014, around 10 a.m., one of Triplett’s neighbors heard knocking on Triplett’s door followed by gunshots about 20 seconds later. Two other Portofino residents, a married couple, heard the gunshots when they

4 were unloading groceries in the complex’s parking lot. The husband saw a man riding a bike into the complex prior to the gunfire, while the wife saw a man riding a bike away from the complex after the shooting. The couple could not identify the biker because he was wearing a hood, and both the husband and wife were not wearing their prescription glasses. Responding officers found Triplett lying in the doorway to his apartment dead from 11 gunshot wounds. All nine bullet casings found at the scene had a Hornady logo and were fired from the same gun. Deputies did not find a firearm, but the markings on the casings indicated that they were fired from a .40 caliber Smith & Wesson. Zapata had recently purchased a .40 caliber Smith & Wesson and Hornady ammunition, which he picked up from the gun store just three days before the shooting. On the day of the shooting, officers found fifteen-year-old R.M. standing outside of the crime scene tape. The following day, R.M. was lighting candles outside of the Portofino apartments, and she told officers that she was very good friends with Triplett. Several weeks later, R.M. was in police custody on an unrelated matter. She told officers that she witnessed Triplett’s murder, and she would disclose the killer in exchange for a deal. After the officers stated they could tell the District Attorney that R.M. had been helpful, R.M. identified Triplett’s killer as “J Dog,” which is a nickname for Zapata. R.M. said that Triplett was like a brother to her, and she slept at his apartment the night before the murder. Around 10 a.m. the following morning, “J Dog” knocked on the door. Triplett answered the door and after he and “J Dog” briefly talked, “J Dog” shot Triplett numerous times. Triplett fell halfway in his doorway, and “J Dog” attempted to shoot R.M. inside the apartment but he was out of bullets. “J Dog” left, and when R.M. was

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People v. Zapata, Counsel Stack Legal Research, https://law.counselstack.com/opinion/people-v-zapata-calctapp-2026.