Shell, and a
bullet proof VEST!!!!
I all seriousness though, yea I've listened to the coverage on the tele and they were explaining that he came in through the exit door in which his vehicle was park directly behind it in the parking lot.
Interesting though that you can't come in through an exit door so he either was in the theater pre-planned where he had bought a ticket and was watching the movie to exit out and get his guns but fix the door so he could get back in and start the firing.
The other conclusion is that he wasn't the only one and that someone actually let him in through the back door.
They interviewed a young man that was at the incident and he said that a canister was launched in the middle of a shooting scene of the movie and he thought it was a prank and that fireworks were going off as soon as the shooting started but then later realized after seeing people were actually really getting shot that this was for real and that he was shooting anything that moved, all he could see was a silhouette of the Holmes and that he was wearing a structure on his face which was a gas mask.
People were fleeing to the exits as Holmes shot off 20 rounds, paused reloaded, and shot another 20 rounds at people trying to escape.
Ski