 It was shortly after 6 p.m. Saturday and just minutes into former President Trump's speech in Butler, Pennsylvania, when the unthinkable happened. Sources say the shooter got off six to eight rounds with his AR-style 5.56 semi-automatic rifle. Trump says he was hit in the right ear by a bullet, while two people were injured and one was killed. Within seconds, Secret Service counter-snipers shot and killed the gunman.