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The Shooter Identified
Within hours, federal authorities began releasing verified details. The Federal Bureau of Investigation took the lead in the investigation and confirmed that the shooter was 20-year-old Thomas Matthew Crooks of Bethel Park, Pennsylvania.
The distance—reported to be roughly 130 to 150 yards—was well within the effective range of the rifle he used. Secret Service counter-sniper personnel identified the threat and neutralized the shooter shortly after the attack began. Crooks was pronounced dead at the scene.