An off-duty volunteer firefighter stopping to help victims of a car crash became the victim of a carjacking Thursday morning in Ballico, according to the Merced County Sheriff’s Department. The car crash occurred in the area of El Capitan Way and Ballico Avenue around 7:30 a.m. and involved a white Carivan minivan and a red Ford Explorer. The firefighter arrived at the scene just after the crash and when he went to check on the victims he had a gun pulled on him, according to the sheriff’s department.