Salt Lake City police are investigating the roles of two self-described "peacekeepers" following a fatal shooting at Saturday's protest that left one person dead and another injured, raising questions about unauthorized security at public demonstrations.

SALT LAKE CITY (KUTV) — The man who was fatally shot during the Salt Lake City "No Kings" protest was a fashion designer with a local company and a former contestant on Bravo's "Project Runway." Police identified the victim of Saturday's shooting as Arthur Folasa "Afa" Ah Loo.

The shooting at Salt Lake City's "No Kings" project told through the lens of on-the-scene Salt Lake Tribune photographers.

Salt Lake City police said​ in a post to social media that the shooting was "possibly associated" with a "No Kings" demonstration.

At least one person was critically injured in a shooting during a ‘No King’ protest in Salt Lake City, Utah. Salt Lake City police said they have taken three people into custody after the “No Kings” m

At 7:56 p.m., Redd said a police officer heard shots near 151 S. State St. First responders soon found Ah Loo injured on the ground. Medics quickly surrounded him, offering aid, but he died later at a local hospital.

Utah resident Arthur Folasa Ah Loo, 39, was shot and critically wounded during the protest in Salt Lake City on Saturday, June 14. He later died in the hospital from his injuries, the Salt Lake City Police Department confirmed in a news release.

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.