Pittsburgh police and ATF agents searched the home of a man accused of leaving explosives next to a downtown Pittsburgh building.
Matthew Michanowicz, 52, is charged with possessing weapons of mass destruction and possession of explosive or incendiary materials or devices.
According to police, Michanowicz was seen riding up to PNC Plaza on a bike with a backpack on Sunday.
Surveillance footage allegedly shows him getting off the bike, looking around and walking over to bushes, where he planted the backpack.
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Source: KDKA/CBSN Pittsburgh