Quote Originally Posted by TheDagQueen
And the other thing about serial killers in general is that they usually have some sort of brain disorder to boot.

Brain disorder + childhood abuse = serial killer

So maybe Walter was unbalanced to begin with.

Or maybe, like I said before, he just came to the conclusion.."You know most folk aren't worth the toilet paper I wipe my ass with, so I will lay waste to them and might as well enjoy myself while I do so"?