President Trump was a target of an apparent assasination attempt today during his rally in Butler, Pennsylvania. One Trump supporter was killed an another is in critical condition. The shooter's "head was blown off," according to an eyewitness.

An eyewitness to the shooting told a BBC reporter that he tried to alert the Secret Service and police that a man was crawling on a rooftop with a rifle, but said they ignored him. Watch the eyewitness interview HERE.