There were TWO rifles. He left ONE in the car. The other one plus two handguns he took in the school. The medical examiner said all were killed with the rifle, then he shot himself in the head with one of the handguns. The other rifle was still in the car.
The Medical Examiner said the bodies of the 7 or 8 children that he perfomed the autopsies on were killed with the .223 rounds, he said he couldn’t speak about the other that he did not examine.