A man who was believed to be part of a peacekeeping team for the “No Kings” protest in Salt Lake City shot at a person who was brandishing a rifle at demonstrators, striking both the rifleman and a bystander who later died at the hospital, authorities said Sunday.

Arthur Folasa Ah Loo, a 39-year-old fashion designer and former “Project Runway” contestant, was fatally shot as an innocent bystander during a “No Kings” protest, according to local police, as Ah Loo is likely the only fatality at thousands of demonstrations against President Donald Trump carried out across the U.