FBI identifies suspect in assassination attempt on Trump as 20-year-old Pennsylvania man

The Federal Bureau of Investigation (FBI) has publicly identified the suspect in the assassination attempt of President Trump at his rally in Butler, Pa.

"The FBI has identified Thomas Matthew Crooks, 20, of Bethel Park, Pennsylvania, as the subject involved in the assassination attempt of former President Donald Trump on July 13, in Butler, Pennsylvania," the agency said in a statement on Sunday. "This remains an active and ongoing investigation."

Less than two hours before the announcement, Kevin P. Rojek, special agent in charge of the FBI’s Pittsburgh Field Office, said at a press briefing that the bureau was not yet "prepared at this time to provide the identity" of the potential shooter.

"There was no identification on the individual," he said, explaining that has prolonged the identification process.

He said officials still had to "run his DNA and get biometric confirmation."

Pennsylvania State Police Colonel Chris Paris and Lt. Col. George Bivens also attended the briefing. 

“Too early to say” if it was a lone wolf attack, Bivens told reporters.

Rojek said the motive has not been determined yet. He added that it's his understanding that the shooter was outside of the secured perimeter at the rally.

He acknowledged it was "surprising" that the shooter was able to take 4-5 shots but a full investigation will provide more detail about how the incident unfolded.

Rojek was asked why no one from the Secret Service was at the briefing on Saturday evening. In response, he said a representative from the agency was not available to attend.

The FBI has setup a website, FBI.gov/butler, for the public to upload audio and video files that could be helpful to the investigation.

The officials confirmed that one male rally attendee was killed and two other men were critically injured.