CNN —The Trump rally shooter searched online for information on the arrest of a Michigan mass shooter and his parents, who were prosecuted in a 2021 high school shooting. A week before the shooting, Thomas Matthew Crooks searched online for the date of the Democratic National Convention and where Trump planned to speak, as well as other searches for Trump and President Joe Biden. Unlike other mass shooters who often leave behind manifestos or writings to explain their attack, Crooks left behind few clues, in his bedroom or online. Investigators have focused on Crooks’ online activity in the months and days before the attack. He searched for the date and location of the Democratic National Convention, which takes place in August in Chicago, and for the location of the Trump rally.

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Persons: Donald Trump, Butler, Thomas Matthew Crooks, Trump, Joe Biden, Saturday’s, Crooks, Ethan Crumbley –, Biden, Crooks ’ Organizations: CNN, Trump, Democratic National Convention, FBI, US Secret Service Locations: Michigan, Butler , Pennsylvania, Butler, Pennsylvania, Chicago