Rohnert Park Man Indicted On Charges Of Manufacturing And Selling Firearms To Gang Members

SAN FRANCISCO – A federal grand jury has indicted Jose Alfredo Perez on charges of unlicensed manufacturing and dealing of firearms as well as firearms trafficking.  Perez was arrested and made his initial appearance in federal district court on January 9, 2026.

According to the indictment unsealed last week and other court documents, Perez, 41, of Rohnert Park, is alleged to have built and supplied more than 20 AR-style assault weapons and ammunition to members of the Angelino Heights Sureño street gang in Santa Rosa, who were legally prohibited from possessing those weapons and ammunition as convicted felons.

As part of the scheme, Perez allegedly had firearms parts that could not be legally shipped to California delivered to an out-of-state address provided by one of the gang members he was working with, who then coordinated having those parts transported to California for Perez to use in building untraceable and unserialized firearms.  In April 2025, while executing a search warrant at Perez’s residence, law enforcement discovered a makeshift firearms manufacturing workshop in Perez’s tool shed and garage, which contained numerous kits for building AR-style rifles along with tools and machinery for assembling the weapons.

In January 2025, officers recovered 11 unserialized assault weapons, depicted below, that were allegedly built and supplied by Perez:

United States Attorney Craig H. Missakian and FBI Special Agent in Charge Sanjay Virmani made the announcement.

Perez is currently in federal custody.  He is next scheduled to appear in federal court on January 14, 2026, for an arraignment and detention hearing before U.S. Magistrate Judge Sallie Kim.

An indictment merely alleges that crimes have been committed, and all defendants are presumed innocent until proven guilty beyond a reasonable doubt. If convicted, the defendant faces a maximum sentence of five years in prison and a fine of $250,000 for the count of unlicensed manufacturing and dealing of firearms in violation of 18 U.S.C. § 922(a)(1)(A), and a maximum sentence of 15 years in prison and a fine of $250,000 for each count of firearms trafficking, in violation of 18 U.S.C. § 933(a)(1).  Any sentence following conviction would be imposed by the court after consideration of the U.S. Sentencing Guidelines and the federal statute governing the imposition of a sentence, 18 U.S.C. § 3553.

This prosecution 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. This case was investigated by HSTF Core Region 2 - San Francisco, which comprises agents and officers from the FBI, California Highway Patrol, and Santa Rosa Police Department, with the prosecution being led by the United States Attorney’s Office for the Northern District of California.

Assistant U.S. Attorney Jared Buszin is prosecuting the case with the assistance of Lakisha Holliman and Yenni Weinberg.