 From ABC News, Trump assassination attempt, I'm Richard Cantu. The would-be assassin identified as 20-year-old Thomas Matthew Crooks, who lived in a nearby Pittsburgh suburb. Authorities say the AR-style rifle used in the shooting was purchased legally by the suspect's father. Sources also say what appeared to be explosives were found in the suspect's car. One source saying they look like grenades. The FBI is working to determine if they're viable.