Thomas Crooks was talking to imaginary people, dancing alone in his room and even researched the distance for the ...

An investigation has revealed new details about the mental state of the suspect who opened fire at then-former President ...

How did Thomas Crooks, who tried to kill Donald J. Trump at a rally last July, go from engineering student to gunman? Times reporters investigated.

The man who tried to assassinate President Donald Trump last year during a campaign rally was unraveling in the months before ...