Authorities: Alleged Trump shooter had bomb-making materials in car and at his home

BUTLER, Pennsylvania - The FBI named Thomas Matthew Crooks, 20, of Bethel Park, Pennsylvania, as the subject involved in the assassination attempt of Donald Trump on July 13.

Two law enforcement agent officials told the Associated Press as the aftermath of the incident continues, that an officer confronted Crooks after two people in attendance noticed a man climbing to the top of a building.

One officer climbed to the roof and encountered Crooks, who pointed his rifle at the officer. The officer retreated down the ladder and Crooks quickly took a shot toward former President Donald Trump.

That's when the U.S. Secret Service counter snipers shot him, said the officials who spoke to The Associated Press on condition of anonymity to discuss an ongoing investigation.

Law enforcement officials also told The Associated Press that bomb-making materials were found inside the vehicle of the man suspected in the Trump rally shooting. There were also bomb-making materials found at his home.

The two officials were not authorized to speak publicly and spoke to The Associated Press on condition of anonymity.

A shooting at Donald Trump‘s rally in Butler, Pennsylvania is being investigated as an attempted assassination of the former president and presumptive Republican nominee, law enforcement officials say.

One attendee was killed and two were critically injured. Trump said on social media that a bullet “pierced the upper part” of his right ear before agents whisked him off stage.

The Secret Service said it killed the suspected shooter, who attacked from an elevated position outside the rally venue.

The range from which 20-year-old Thomas Matthew Crooks fired and his clothing led to early speculation that the shooter had military experience. However, all the branches of the military searched their records Sunday and said in response to a query by The Associated Press that they had no records of him serving.

“We’ve confirmed with each of the military service branches that there is no military service affiliation for the suspect with that name or date of birth in any branch, active or reserve component in their respective databases,” Pentagon press secretary Maj. Gen. Pat Ryder said.