Shooter at Trump rally identified as suspicious one hour prior to incident: FBI

Police identified Thomas Crooks, the 20-year-old man attempting to assassinate Donald Trump, over an hour before the July 13 shooting at a rally, according to statement by FBI. Although Crooks was flagged as suspicious and photographed, he still managed to carry out the attack, which left Trump injured. The FBI is investigating the sequence of events, while Crooks' motive remains unclear. Crooks had a history of researching mass shootings and collecting explosive materials, according to officials.