According to officials, Arturo Gamboa, a frequent protester, dressed in black and carried an automatic rifle that evening. An armed security volunteer thought Gamboa was a threat and fired.

MORE | "No Kings" Protest Shooting Following his arrest, a preliminary screening occurred on June 20, in coordination with the district attorney’s office, to determine if charges would be filed.

Organizers behind Utah's No Kings demonstrations were warned against having armed "peacekeepers" at rallies before a fatal shooting last month, Gov. Spencer Cox said Thursday.

Arturo Gamboa, 24, was arrested for investigation of murder after witnesses reported seeing him carrying a rifle during the No Kings protest.

According to Salt Lake City police, the shooting during the protest happened after two men, who described themselves to police as “peacekeepers,” confronted 24-year-old Arturo Gamboa, who was ...

Suspect Arturo Gamboa did not fire any shots at the Salt Lake "No Kings" protest, but could face a murder charge for his alleged involvement in a bystander's death.