The shot that killed the man who attempted to assassinate former President Trump at a rally in Butler, Pennsylvania, last Saturday was a "one-in-a-million shot," according to a source familiar with the investigation into the shooting. Fox News learned from the source the kill shot was a single shot taken by a Secret Service counter sniper whose view was obscured. A local tactical team also took a shot at the would-be assassin, 20-year-old Thomas Matthew Crooks, but missed.