Before the arrest, officers responded early Monday morning to a reported commercial burglary on the 1200 block of Old Bayshore Highway. At the scene, officers found what appeared to be a"manufacturing facility for illegally made destructive devices," Aponte said.
"While clearing the building, they found several components that are used to make bombs or other destructive devices," Aponte added.Sign up for NBC Bay Area’s Housing Deconstructed newsletter. San Jose police Officer Steve Aponte addresses the arrest of a man who allegedly had more than 100 pounds of explosive making materials, assembly equipment, and completed explosives at his home and business.
Authorities identified Mirassou as the primary suspect and obtained search warrants for the business and his home, police said. Authorities collected several pieces of evidence during the course of the investigation, Aponte said. A motive remains under investigation.