Alright folkies, I've been trying not to pay attention to the media coverage of this (see my post about the media in the G.O.M. Forum), but I'll give you my quick take on it anyway.
This act is an expression of envy at it's highest form (the most potent emotion) and he's a classic example how most serial killers/rampage killers think. He lived a disassociated life, he was on the fringes, he had no control over those things he wanted control over, and he had a serious inferiority complex. Yeah, no power, no money, no respect, and no hoes (a lot of shit like this comes down to whether or not you have access to bitches), so what does he do? Releases his hate towards those he envies the most. All of the people around him that are doing the things he wants/wanted to do.
My rudimentary break down.
OH, What A Job This Is!