Teen Hitmen for Sinaloa Cartel Sentenced to 25 Years in Prison

SAN DIEGO - Two teenage gang members were sentenced in federal court today to 25 years in prison for attempting to murder a target of the Sinaloa Cartel, and for the collateral death of a fellow gang member who was fatally shot during one of the failed murder attempts.

"California Senate Bill 1391 made state prosecutions of 14- and 15-year-olds a practical impossibility regardless of the seriousness of the crime. Then, the Sinaloa Cartel and the Mexican Mafia-affiliated Westside Wilmas recruited accordingly," said U.S. Attorney Adam Gordon, "No. No to the Sinaloa Cartel recruiting juveniles. No to the Mexican Mafia directing gangland hits in San Diego. No to a lack of consequences for juveniles who would do their bidding."

"The sentencing of these teenagers sends a clear message: individuals who commit acts of violence, regardless of age, will be held fully accountable under the law," said Acting Special Agent in Charge TJ Holland of the FBI San Diego Field Office. "The FBI remains steadfast in our commitment to identify, dismantle, and eliminate the violent gangs, cartels, and criminal organizations responsible for this violence. FBI San Diego and our law enforcement partners will continue to investigate anyone threatening the safety of our communities, including those who mistakenly believe they can exploit juveniles to carry out violent crimes without consequence."

In issuing the court's sentence, U.S. District Judge Todd W. Robinson likewise warned that the Sinaloa Cartel, Mexican Mafia, Westside Wilmas, and similarly situated gangs "need to be put on notice that you don't get a pass when you have a juvenile commit an offense like this."

Andrew Nunez and Johncarlo Quintero - who were both 15 at the time of the crimes on March 26 and 27, 2024 - pleaded guilty in December 2025 to murder and attempted murder charges, admitting they were acting as hired hitmen for the Sinaloa Cartel when they made two attempts in five hours to kill the cartel's target.

Nunez and Quintero were members of the Mexican Mafia-affiliated Westside Wilmas gang from the greater Los Angeles area. They drove from Wilmington, California to a Chili's restaurant in Chula Vista, where their target was dining with his family.

The target and his family were leaving the Chili's restaurant when Quintero and Nunez pulled up behind them in the parking lot. Quintero got out of the car and fired a single bullet that struck the victim's legs. After that single shot, Quintero's firearm jammed, and he was unable to unjam the weapon in time to shoot again. Quintero got back into the car Nunez was driving, and Nunez attempted unsuccessfully to hit and kill the intended victim with the vehicle. The teen gunmen then fled the scene.

Later that night, in the early hours of March 27, 2024, the teen hitmen showed up at the intended victim's home to finish the job. They were joined this time by an older accomplice, 28-year-old Ricardo Sanchez. Nunez and Quintero each expected to be paid approximately $50,000. The trio approached the target's home, carrying at least one firearm apiece.

Two family members and a friend of the intended victim were present in the home. Sanchez banged on the front door, and once the friend responded, Quintero and Nunez shot at the friend and fired indiscriminately at the family home. According to the plea agreements, Nunez and Quintero acted with the intent of ending the life of the friend and anyone within the kill zone they created in targeting the intended victim.

The friend was shot in the hand, arm, and face by Quintero and Nunez, but he survived. In response to Quintero and Nunez's actions, the friend shot toward Nunez, Quintero and Sanchez to protect himself and the others within the home and, in so doing, he shot and killed Sanchez-a provocative-act murder to which Nunez and Quintero pleaded guilty. After that, the hitmen fled the scene.

The defendants admitted they were tapped to murder the cartel's target because they were minors and, specifically, only 15 at the time. According to admissions in their plea agreements, the defendants knew-if apprehended for this conduct-that they were ineligible to be transferred to adult status under the laws of the State of California because they were under the age of 16 at the time of the offense. For example, among other discussions Nunez had with his co-defendant after being arrested, Nunez and Quintero talked about not being able to "catch a…707" because of their age at the time, which referred to not being subject to adult transfer under California Welfare & Institutions Code Section 707.

In February 2026, a federal grand jury indicted alleged Sinaloa Cartel associates Poly Antunez, Antonio Quinones, and Jovanny Enriquez for conspiring with the teens to execute the cartel target. The 15-year-olds were thought to be too young for serious legal consequences. That indictment charged the defendants with Conspiracy to Commit Murder in Aid of Racketeering, Attempted Murder in Aid of Racketeering, Assault with a Dangerous Weapon in Aid of Racketeering, Conspiracy to Commit Murder for Hire, and Use of Interstate Facilities in Commission of Murder for Hire. That related case, Case Number 26cr402-TWR, is pending.

These cases are being prosecuted by Assistant U.S. Attorneys Ashley Goff, Peter Horn and Joshua Mellor.

DEFENDANTS Case Number 25cr4822-TWR

Andrew Nunez

aka "Shooter," aka "Felon" Age: 16 Wilmington, CA

Johncarlo Quintero Age: 17 Wilmington, CA

aka "Dumper"

SUMMARY OF CHARGES

Attempted Murder in Aid of Racketeering (Title 18, U.S.C., Secs. 1959(a)(5) and 2)

Maximum penalty: Ten years in prison, $250,000 fine

Murder in Aid of Racketeering (Title 18, U.S.C., Secs. 1959(a)(1) and 2).

Maximum penalty: Life in prison; $250,000 fine

INVESTIGATING AGENCIES

Federal Bureau of Investigation

Chula Vista Police Department

Bureau of Alcohol, Tobacco, Firearms and Explosives

United States Marshals Service

California Highway Patrol

*The charges and allegations contained in an indictment or complaint are merely accusations, and the defendants are considered innocent unless and until proven guilty.

This case is part of the Homeland Security Task Force (HSTF) initiative established by Executive Order 14159, Protecting the American People Against Invasion. The HSTF is a whole-of-government partnership dedicated to eliminating criminal cartels, foreign gangs, transnational criminal organizations, and human smuggling and trafficking rings operating in the United States and abroad. Through historic interagency collaboration, the HSTF directs the full might of United States law enforcement towards identifying, investigating, and prosecuting the full spectrum of crimes committed by these organizations, which have long fueled violence and instability within our borders. In performing this work, the HSTF places special emphasis on investigating and prosecuting those engaged in child trafficking or other crimes involving children. The HSTF further utilizes all available tools to prosecute and remove the most violent criminal aliens from the United States. HSTF San Diego comprises agents and officers from FBI, Homeland Security Investigations, DEA, ATF, U.S. Marshals, Department of Defense, U.S. Postal Inspection Service, Naval Criminal Investigative Service, IRS Criminal Investigation, U.S. Coast Guard, U.S. Customs and Border Protection and Interpol, with the prosecution being led by the United States Attorney's Office for the Southern District of California.