Thomas Matthew Crooks, the gunman who tried to assassinate Donald Trump ... I lost sight of him.” By 6:11 p.m., Crooks was dead on the roof of a warehouse connected to the one where the countersnipers ...

Sean Curran, the head of Trump's personal security detail, was among several agents who surrounded Trump as a gunman in ...

Matthew Crooks' father called police because ... still trying to trace a potential motive for the 20-year-old gunman, who was shot dead by Secret Service snipers after opening fire.