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Police have released a description of the shooter, believed to be a light-skinned male wearing a light brown or cream-colored jacket, a black face mask, and distinctive gray sneakers. A gray backpack was also noted as a significant identifying feature.
Surveillance video captures the moments leading up to the incident, detailing the shooter’s arrival at around 6:41 a.m., just before Thompson left his hotel to head to the conference. Video evidence also indicates a malfunction with the firearm as the shooter attempted to clear a jam during the attack. Scattered at the crime scene were three live 9mm rounds and three discharged shell casings.