Officers arrested 24-year-old Arturo Gamboa, who had an AR-15-style rifle and a gas mask and was injured in the incident. But police say he wasn’t the shooter. According to a report by our Fox affiliate,

Thousands gathered at Salt Lake City’s Pioneer Park Saturday evening for another “No Kings” protest, following the earlier demonstration at the University of Utah.

An innocent bystander at a “No Kings” protest in Utah was shot and killed by a “peacekeeper” who was aiming for a different man pointing an AR-15-style rifle toward the crowd, witnesses told Salt Lake City police.