A man who brought a rifle to a “No Kings” rally in Utah — prompting an armed safety volunteer to open fire and accidentally kill a protester — has been released from jail while the investigation continues. Salt Lake District Attorney Sim Gill’s office said Friday that it was unable to make a decision on criminal charges against 24-year-old Arturo Gamboa. He had been jailed on suspicion of murder following the June 14 shooting. Gamboa never fired a shot during the rally and it is generally legal to carry firearms in public in Utah. His lawyer said Gamboa was lawfully in possession of the rifle at the rally and was walking with it unloaded pointed at the ground before he was shot in the back by the volunteer.