It was probably an M-4 AR-type Carbine he hooked off the dead guard....yep, much different with auto...
This needs to be answered. The AR15 has a bad enough reputation, we don’t need this adding to it and providing further justification to the leftists to ban it. The media will certainly attempt to confuse the facts just like they said Holmes was wearing a bullet proof vest when he was actually wearing a nylon tactical vest incapable stopping a pellet gun.
Every report of the sound of gun fire I heard was described as a rapid "pop-pop-pop". That's a select fire 3 round burst if you ask me...which is NOT a civilian AR15.