Daddy made him mow the lawn for an allowance when he was young, and that's what set him off on this killing spree.
You forgot that his Mommy wouldn't let him smoke dope in the house, Grand Ma and Grand Pa wouldn't buy him the GI Joe with the Kung-Fu Grip and Life-Like hair for his birthday, the best looking girl in school wouldn't go out with him, he ate too much junk food, people called him names when he was in school, and his teachers didn't give him straight A's Cuhck56...