 A local police officer climbed to the would-be assassin's perch on a roof before he took aim at former President Trump, but that officer was forced back. News special report. The suspect who fired shots at Donald Trump's rally in Pennsylvania, injuring the former president and killing an attendee, had bomb material at his house and in his car. There was a 20-year-old from nearby Bethel Park, Pennsylvania. What remains unknown, though, is the motive.