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.

Arthur Folasa Ah Loo was a former contestant on “Project Runway,” whose designs were beloved by celebrities from “Real Housewives” to “Moana” star Auli’i Cravahlo.

Arthur Folasa Ah Loo, a 39-year-old former contestant on the fashion design competition series, died Saturday after being struck by gunfire, as police refer to him as an “innocent bystander.”