According to the FBI, Thomas Crooks was not carrying any identification, so investigators used DNA to confirm his identity.
According to local newspapers, he is from Bethel Park, Pennsylvania, about 70 kilometers (43 miles) from the scene of the assassination attempt, and graduated from Bethel Park High School in 2022 with a $500 prize for math and science.
According to the BBC, Crooks worked in the kitchen of a local nursing home, a short drive from her home.
According to U.S. media, state voter records show he was a registered Republican.
He was also reported to have donated $15 to the progressive campaign group ActBlue in 2021.
According to US media reports, Crooks was wearing a T-shirt from Demolition Ranch, a YouTube channel known for its gun and explosive content. The channel has millions of subscribers and features videos of various guns and explosive devices.
According to the Associated Press, law enforcement officials believe the weapon used to shoot Donald Trump was purchased by Crook's father.
Two police officers, speaking on condition of anonymity, told the AP that Crooks' father purchased the weapon at least six months ago.
The day after the shooting, law enforcement sources told the BBC's US partner CBS that a suspicious device was found in Crooks' vehicle.
According to CBS, the suspect was in possession of commercially available equipment that appeared to be capable of operating the device.
Bomb technicians were dispatched to the scene to secure and examine the device.
