 Came the popping of gunfire. The former president grabbed at his right ear, then dove to the ground as a swarm of Secret Service agents scrambled to cover him. Trump suffering a graze wound to that right ear. One rally attendee was killed, two others injured. Retired Secret Service official and ABC News contributor Donald Mihalik breaks down the different investigations. We're potentially looking at three investigations here. You're looking at the FBI investigation for an attempted assassination against former President Trump.