A monthslong investigation by CBS News punctures Thomas Crooks’ secrecy to reveal the broadest portrait yet of the lonesome ...

The 20-year-old was shot dead by Secret Service after opening fire at a rally in Butler, Pennsylvania, on July 13, 2024.

Undated file photo of Thomas Matthew Crooks. Crooks tried to assassinate President Donald Trump in Butler, Penn. on Saturday, July 13, 2024. (Obtained by Fox News Digital) ...

Fox News© Obtained by Fox News Digital Undated file photo of Thomas Matthew Crooks. Crooks tried to assassinate President Donald Trump in Butler, Penn. on Saturday, July 13, 2024. Fox News© Fox News ...

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.

Trump rally shooter was designing bomb while applying for college, emails show 03:38. Thomas Matthew Crooks had a lot on his mind in January 2024. The 20-year-old who, six months later, would open ...