A local police counter-sniper team was stationed inside the building where attempted assassin Thomas Crooks climbed on the roof and fired on Donald Trump, law enforcement sources told The Post.
The building — the AGR International Inc. factory in Butler, Pennsylvania — was being used by local police as a “watch post” for snipers to scan for threats as the former president spoke onstage only 130 yards away, according to sources.
Cops were inside, but not on the roof during the shooting, sources said.
Crooks was able to scale the building unchallenged before firing off eight shots with an AR-style assault rifle, grazing Trump in the ear, killing one Trump supporter and wounding two others.