Trinitarios Gang Member Sentenced to Prison for Possession of Machinegun

BOSTON - A Lawrence, Mass. man was sentenced today in federal court in Boston for possessing a loaded UZI machinegun with an extended magazine loaded with 24 rounds.

Derek Mercado, 21, was sentenced by Senior U.S. District Court Nathaniel M. Gorton to 37 months in prison, to be followed by three years of supervised release. In November 2025, Mercado pleaded guilty to possessing an UZI machinegun.

Mercado is a member of the Trinitarios gang, a violent criminal enterprise responsible for numerous murders and acts of violence across Massachusetts. On May 6, 2025, an alert to arrest Mercado was broadcast by law enforcement following a report of a domestic violence incident. The victim reported that the defendant was in possession of a firearm in a green duffel bag. At the time, Mercado was in warrant status on two unrelated matters. Mercado was later observed exiting a residence while possessing a green duffel bag. Mercado was taken into custody and an Israel Military Industries UZI model submachinegun containing an extended magazine loaded with 24 rounds was recovered in the green bag. The UZI was later test-fired and determined to be a functional machinegun.

In February 2025, federal racketeering charges were unsealed against 22 leaders and members of the Trinitarios. The charges were the result of a multijurisdictional investigation, dubbed Operation Paper Machetes, which began in the aftermath of four murders as well as a series of attempted murders and shootings that took place in Lynn in 2023, allegedly committed by the Trinitarios criminal enterprise and its members. In March 2025, a Lynn member of the Trinitarios was sentenced to 10 years in prison. In June 2025Links to other government and non-government sites will typically appear with the "external link" icon to indicate that you are leaving the Department of Justice website when you click the link., two members of the Trinitarios were charged with kidnapping a drug supplier. In July 2025, the leader of the Lynn Chapter was sentenced to 14 years in prison. In December 2025, two members of the Lynn Chapter, Michael Miliano and James Jimenez pleaded guilty to racketeering conspiracy. In April 2026, Luis Enrique Santana pleaded to racketeering conspiracy. In May 2026, Westyn Lantigua pleaded guilty to racketeering conspiracy and the commission of a shooting involving a machinegun.

The charge of possessing a machinegun provides for a sentence of up to 10 years in prison, up to three years of supervised release and a fine of up to $250,000. Sentences are imposed by a federal district court judge based upon the U.S. Sentencing Guidelines and statutes which govern the determination of a sentence in a criminal case.

United States Attorney Leah B. Foley; Jeff Grimming, Acting Special Agent in Charge of Homeland Security Investigations in New England; Essex County District Attorney Paul F. Tucker; Colonel Geoffrey D. Noble, Superintendent of the Massachusetts State Police; and Haverhill Police Chief Robert Pistone made the announcement today. Assistant U.S. Attorney Philip A. Mallard of the Organized Crime and Gang Unit is prosecuting the case.

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 Boston is comprised of agents and officers from HSI, FBI, DEA, ATF, USMS, IRS-CI, USPIS, DOL-OIG and DSS, as well as several state and local law enforcement agencies, with the prosecution being led by the United States Attorney's Office for the District of Massachusetts.