What causes a mass slaying?
According to Bryan Fischer, of the conservative Christian organization The American Family Association, what caused the Joker slayings in Aurora, CO was Darwinism:
"[James Holmes, the shooter] sees himself as evolutionarily advanced just like he was taught in school about Darwin, that this is how natural selection works."
And a lack of organized prayer in school:
"We have spent 60 years telling God to get lost. What if every single day in [Holmes'] educational process, there had been readings from the word of God ... Who knows if things could have been different."
And, of course, liberals:
"But we’ve tried it the other way. The point of my column, we’ve tried it the liberals’ way for 60 years now. What do we got? We have massacres in Aurora.”
So, that's what causes a spree killing. Not easy access to assault weapons and a lack of aqeduate mental healthcare.