Gun shop where Trump rally gunman purchased ammo pledges full support for law enforcement

The owner of Allegheny Arms had pledged his full support and cooperation with law enforcement as authorities look into would-be Trump assassin Thomas Matthew Crooks. (Michael Ruiz/Fox News Digital.)

The Pennsylvania gun shop where would-be assassin Thomas Matthew Crooks bought ammunition before a deadly attempt on former President Donald Trump's life at a rally in nearby Butler County has vowed to fully support law enforcement as investigators seek answers in Saturday's attack.

"As a responsible member of our community, it is our prerogative to cooperate with law enforcement in every way," Allegheny Arms owner Bruce Piendl told Fox News Digital. "We are thankful that President Trump was not assassinated, and our hearts go out to all victims of this horrible incident."

Trump suffered an injury to his right ear in the attack, which killed a spectator named Corey Comperatore and critically wounded two other bystanders – David Dutch, 57, and James Copenhaver, 74, according to authorities. 

The FBI, which is leading the investigation into Crooks' actions, previously said he was not on the radar of federal law enforcement and had no prior criminal record or history of mental illness.

On the day of the shooting, he went to the gun shop just over a mile from his parents' house and bought 50 rounds of ammo, the Pittsburgh Post-Gazette reported earlier.

Read more about the events leading up to Crooks’ attempted assassination of Trump.