Documents obtained by CBS News shed light on Thomas Matthew Crooks, the 20-year-old who opened fire at a Trump rally in Butler, Pennsylvania.

Thomas Crooks was a nerdy engineering student on the dean’s list. He stockpiled explosive materials for months before his attack on Donald Trump, as his mental health eroded.

Higgins, a former police captain, revealed that the body of the shooter, Thomas Matthew Crooks, had been “released ... Mike Kelly (R-Pennsylvania), who expressed grave reservations about the ...

Thomas Matthew Crooks visited the Donald Trump rally location ... Earlier Wednesday, McConnell called the attempt on Trump’s life “a grave attack on American democracy.” ...

Emails and essays obtained by CBS News shed new light on Thomas Matthew Crooks, the 20-year-old who opened fire at a Trump rally in Butler, Pennsylvania.

The shooter has been identified as Thomas Matthew Crooks, 20, and the FBI is investigating ... assassination of former President Trump was a grave attack on American democracy,” McConnell ...

Donald Trump shooter Thomas Matthew Crooks' father has spoken out for the ... of the United States was initially treated at Butler Memorial Hospital in Pennsylvania, which Jackson praised for ...

The suspect in the attempted assassination of former President Donald Trump was identified as 20-year-old Thomas Matthew Crooks. Crooks, who was killed by the Secret Service after firing from an ...

BUTLER, Pa. (KDKA) — Donald Trump was taken to Butler Memorial Hospital on Saturday after 20-year-old Thomas Matthew Crooks opened fire at the former president's rally. The staff treated Trump's ...