BOX ELDER COUNTY, Utah — A man is dead after a fatal accident occurred on SR-91 near mile marker zero, just off Interstate 15, on Sunday afternoon. According to the Utah Highway Patrol (UHP), the man was outside his vehicle, attempting to make repairs when he was struck by another car. UHP officials reported that the victim had been working on his car along the side of the road when he was sideswiped by a passing vehicle. Emergency responders arrived at the scene and attempted life-saving measures, but the man was pronounced dead on-site. The driver of the vehicle that…