Trump Shooter's Father Called Cops About Missing Gun Before Attack: Report

The FBI also found a metal box of explosives in the car which Crooks drove to the rally.

Before Thomas Matthew Crooks aimed his AR-15 gun at Former US President Donald Trump during a campaign rally in Pennsylvania, his father contacted the police, concerned about his son's location when a gun, one of the many he owned, was missing from their home.

The call, another red flag in a series of warnings to law enforcement before the attack, came from Crooks' father Matthew Crooks after his son disappeared without any notice, a report by BBC said.

While some reports suggest the call happened before the shootingm others suggest Matthew Crooks called police after the shooting.