I wish people would stop discussing this guy as having a mental illness or womanizer. He was a narcissist who wasn't having it his way. He wasn't manic depressive or bipolar and even if he had been - NONE of those illnesses would have made his crime less of a murder. Putting him in the same circle as people with mental illnesses makes those who actually have them look worse and make him look better.
Blaming his lack of sex for his action is bull**** too. Half the middle class white boys I work with didn't get any until they were well into their 20s. None of them have started killing people - not yet or not that I know of anyways. This is a guy who wasn't getting the amount of satisfaction he thought he deserved and he decided to take it out on women. At best, he's somewhere behind a disorganized serial killer but he's not mentally ill. Quit saying he is. He was premeditated enough to post **** on the internet, make a barely coherent diatribe, get the weaponry and stalk a location. He was perfectly sane.