Police said Sunday that someone wearing a brightly colored security vest was aiming at a man who had peeled off from the crowd and was holding a rifle.

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.

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.