A local police officer reportedly confronted sniper Thomas Matthew Crooks but ... to confirm that his team was not aware that Crooks was on the rooftop until he began firing.

Thomas Matthew Crooks Was Spotted On A Rooftop Ahead Of Shooting Ten minutes later, Crooks was spotted on a rooftop across from Trump, leading to an officer being assigned to watch the area.

Spectators warned police about a man with a gun as suspected shooter Thomas Matthew Crooks prepared his attempt to assassinate former President Donald Trump from a rooftop less than 450 feet from ...

Thomas Matthew Crooks, who authorities say tried to assassinate ... rifle and said Crooks was able to fire multiple rounds from a rooftop before a Secret Service sniper fired back, killing him.