A baby was shot and killed by a toddler who got hold of a loaded gun while they were in a parked car and pulled the trigger, police said. The shooting occurred Monday in a parking lot near a medical center in San Antonio, Texas. Three children — ages 3, 2 and either 10 or 11 months — and a woman were in the vehicle. One of the older children got hold of a loaded long gun that was in the very rear of the vehicle and "accidentally pulled the trigger," shooting the youngest child, authorities said.