 The gunman in the attempted assassination of former President Donald Trump is believed to have flown a drone around the Pennsylvania rally site ahead of time in an apparent attempt to scope out the site before the event. The drone has been recovered by the FBI, which is leading the investigation into last Saturday's shooting at the rally by 20-year-old Thomas Matthew Crooks. The existence of the device and its use at some point before the shooting could help explain how Crooks knew to fire from that point.