Norteño Gang Member Sentenced for Manufacturing Destructive Devices and Possessing a Silencer

Joseph Marcus Silva, 28, of Porterville, was sentenced today by U.S. District Judge Jennifer L. Thurston to five years and 11 months in prison for manufacturing three destructive devices and possessing an unregistered silencer, Acting U.S. Attorney Michele Beckwith announced.

According to court documents, Silva is a member of the Norteño gang subset called Varrio Central Poros and a convicted felon. Silva manufactured three destructive devices, using a 3D printer to make two of them. One of the 3D-printed destructive devices was similar to a military claymore mine that read, "FRONT TOWARDS ENEMY." A claymore mine is a directional fragmentation, antipersonnel mine that is capable of incapacitating, injuring, or killing people. The second 3D-printed destructive device was a military-type M67 grenade. Silva also made a destructive device consisting of a glass tube with flash powder, BBs, and a fuse. In addition, Silva admitted that he unlawfully possessed an unregistered silencer, which had previously been used. Silva also possessed nine additional firearms, including six 3D-printed orange and gray frames, as depicted below:

3D-printed orange and gray frames possessed by Silva

A frame, which is the part of a firearm that integrates other components by providing housing for internal action components, is considered a firearm.

This case was the product of an investigation by the Bureau of Alcohol, Tobacco, Firearms and Explosives with assistance from the Tulare County Agency Regional Gun Violence Enforcement Team of the California Department of Justice, the Porterville Police Department, and the U.S. Postal Inspection Service. Assistant U.S. Attorney Karen A. Escobar prosecuted the case.

This case is part of Project Safe Neighborhoods (PSN), a program bringing together all levels of law enforcement and the communities they serve to reduce violent crime and gun violence, and to make our neighborhoods safer for everyone. On May 26, 2021, the U.S. Department of Justice launched a violent crime reduction strategy strengthening PSN based on these core principles: fostering trust and legitimacy in our communities, supporting community-based organizations that help prevent violence from occurring in the first place, setting focused and strategic enforcement priorities, and measuring the results.