 Live from NPR News in Washington, I'm Corva Coleman. The FBI is investigating the attempted assassination of former President Donald Trump. Investigators have not revealed what the motive behind the attack might have been. They have identified the suspect, Thomas Matthew Crooks. The 20-year-old was killed at the scene. He's believed to have lived with his parents in a Pittsburgh suburb known as Bethel Park. NPR's Dave Mistich has more on the suspect.