 Authorities say the gunman opened fire from a rooftop a few hundred yards away. The suspect was killed by Secret Service, who returned fire within a few seconds. Still, authorities say one spectator was killed and two others wounded. This attendee of the rally, Erin, saw it happen and tells ABC News. We're all in shock because we never expected this. I mean, it's a beautiful rally, a beautiful night. Trump has arrived back in New Jersey after spending a few hours in the hospital in Pennsylvania.