 We'll focus on the background of his alleged shooter, 20-year-old Thomas Matthew Crooks of Bethel Park, Pennsylvania. He's described as a loner who was bullied in school. Crooks was a registered Republican who contributed money to a progressive political action committee. Frederick County Sheriff Chuck Jenkins wonders what motivated Crooks to try and shoot Trump. How does that happen for a 20-year-old that's not on the radar, a relatively quiet kid, a loner?