An "innocent bystander" at the "No Kings" demonstration in downtown Salt Lake City was shot and killed Saturday, police said. Arthur Folasa Ah Loo, 39, of Utah, died in a hospital, Salt Lake City police said in an update. Detectives believe Ah Loo was at the demonstration as a bystander and "was not the intended target of the gunfire." Police have arrested Arturo Gamboa, 24. He was booked into the Salt Lake County Metro Jail on a murder charge. It was not immediately clear whether Gamboa was still in jail Sunday and whether he has an attorney.