(File Photo)
PITTSBURGH (AP) — A Pittsburgh man who authorities say left a backpack full of homemade explosive devices in a bush outside of a complex in the city’s downtown area is now facing several charges. Authorities say 52-year-old Matthew Michanowicz was seen on surveillance video placing the military-style backpack at PNC Plaza on Sunday. Police were notified about the backpack on Monday and found it contained makeshift explosives. When officers showed Michanowicz photos of him placing the backpack in the bushes, authorities say he confirmed he was the person in the photos but still denied having the backpack. He’s charged with three counts each of arson and possessing weapons of mass destruction.