 Live from NPR News in Washington, I'm Corva Coleman. The FBI is still investigating the suspect who was accused of trying to assassinate former President Donald Trump over the weekend. Federal authorities say that 20-year-old Thomas Crooks was killed at the scene. No motive for the shooting has been disclosed. Meanwhile, the Secret Service is facing questions. Critics want to know why the shooter appeared to be able to fire at Trump, who says his ear was pierced.