The essentials
FBI investigation determined shooter acted alone with no outside coordination.
Thomas Matthew Crooks opened fire at a rally in Butler, Pennsylvania on July 13, 2024, striking former President Donald Trump. Following the incident, the FBI concluded that Crooks acted alone in carrying out the attack.
FBI Director Kash Patel testified that Crooks had no contact with other individuals except his parents, reinforcing the agency's assessment that the shooting was not coordinated with any external party or organization. The investigation examined Crooks' communications and associations to determine the nature of his actions.
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Evidence points to solitary actor with minimal outside connections
The FBI's examination found no coordination or external influence on Crooks' actions. Director Patel's testimony established that communications with family members were the only documented contact, significantly constraining theories about broader networks or organizational involvement in the incident.
Lone-actor attack highlights challenges in threat detection
The lack of communications or coordination with others presents distinct investigative challenges, as traditional intelligence gathering focused on group communications or external contacts would not detect activity by isolated individuals. This attack demonstrates the difficulty of identifying threats from operatives working without external collaboration.