The volunteer fired three rounds at Arturo Gamboa, 24, who allegedly brandished a rifle at Saturday's crowd. The gunshots hit both Gamboa and a bystander, Arthur Folasa Ah Loo, police

Salt Lake County District Attorney Sim Gill at the district attorney’s office in Salt Lake City on Thursday, May 23, 2024. Prosecutors have not yet filed criminal charges in the three days since a fatal shooting at the downtown Salt Lake City "No Kings" protest.

A demonstrator was shot and killed at Salt Lake City’s “No Kings” protest when a man believed to be part of the event’s peacekeeping team fired at another man allegedly aiming a rifle at protestors, authorities said Sunday.