Both places would have had massive deaths that would likely dwarf his shooting deaths. This guy was on a mission. He luckily chose guns over bombs. Bombs would have been far worse.
“He luckily chose guns over bombs. Bombs would have been far worse.”
Actually, he chose both! His apartment was highly boobytrapped. He had set a timer to turn on the stereo blastingly loud at just about the time of his theatre attack. Neighbor complained, and noticed the door was unlocked. He planned to blow the building up! I believe I read the cops said there were enough explosives to also take down neighboring buildings!