 From ABC News, I'm Dave Packer. New information on the investigation into the attempted assassination of former President Trump. Authorities are investigating whether the suspect, Thomas Matthew Crooks, used a drone to surveil the Pennsylvania rally site sometime before the shooting. ABC Chief Justice Correspondent Pierre Thomas. After Crooks was killed, police finding his cell phone and a gray transmitter near his body, which authorities say Crooks intended to use to remotely set off explosives in his cars.