A military veteran who inadvertently fatally shot a demonstrator at a Salt Lake City “No Kings” rally while trying to stop an alleged gunman was a “safety volunteer” for the protest, according to police and organizers.

Utah 50501, the organizers of Saturday's protest in downtown Salt Lake City, say there was an "imminent threat" to protesters before the deadly shooting.

The alleged rifleman, Arturo Gamboa, 24, was also shot and was taken into custody on a murder charge, Salt Lake City Police Chief Brian Redd said at a Sunday news conference. The bystander who was killed was identified as Arthur Folasa Ah Loo, 39, a fashion designer from Samoa.