SAN JOSE, Calif. (KGO) -- The San Jose Police Department is investigating after a suspect in possession of explosive material was arrested. He's now believed to be responsible for blowing up two PG&E transformers. The suspect has been identified as 36-year-old San Jose resident Peter Karasev who made his first court appearance on Friday. SJPD says the investigation began with two separate incidents involving explosive devices between December and January. On Jan. 5, officers responded to the 6000 block of Snell Ave. on a report of a damaged transformer. A PG&E employee said an explosion occurred the night before around...