 A shooting that left the former president with a bandaged ear and killed a man in the audience, injuring two more in the crowd. Multiple agencies have been working on many questions about the would-be assassin. Not only how he was able to get a shot from a nearby rooftop, but also his motives. These days, that typically leads investigators to social media and a suspect's cell phone. With this gunman dead, killed by a Secret Service sniper,