Charles Whitman. Someone already mentioned him, but only briefly. Whitman went into a tower on the UT Austin campus in 1966 and killed fourteen people and injured 32. He also killed his mother and wife earlier that day.
Violent video games and music are a
scapegoat. They're what people blame when they want to believe that something terrible was an isolated incident, or somehow preventable.
They're also used to deflect blame from those who let someone slip through the cracks. Whitman actually visited a psychiatrist a few months earlier and mentioned an urge to "start shooting people with a deer rifle" from the tower. He also told friends he had abused his wife, which wasn't reported until later.
Whitman was clearly disturbed, and should have been under much more stringent psychological attention.
"Oh, it was the 60's, nobody knew he'd actually do it."
"Oh, it was Doom, they were nice boys before that."
I would also like for anyone who thinks that "too many guns" causes things like this to talk to
Suzanna Hupp. I'm sure she'd appreciate it.