
From his second-row seat at Donald Trump’s Pennsylvania campaign rally on Saturday, Butler County Sheriff Michael Slupe heard a “bam-bam-bam” as the former president was speaking, and at first he thought about a complaint lodged earlier in the day about fireworks near the site.
Slupe said he learned later that a local police officer spotted gunman Thomas Matthew Crooks before he opened fire but was unable to stop him. The officer was helped by a colleague onto the roof where Crooks was positioned, but when Crooks turned toward him, the officer dropped to the ground, Slupe said.