Really? I think you don;t need to look too deep into the killers history and mental state to see why those killings happened.
Lazy interview question, lazy non sequiter post!
Charmed I'm sure. Even lazy old me has picked up on the fact that gun control is currently America's No.1 topic. One that even Quentin 'Chicks Who Love Guns ' Tarantino understandably would not wish to get drawn into at this time. [Edit: Btw the above first paragraph was the only part of your post that was up at time of replying].