Amoklauf on Wheels?

I don't trust my German enough to attempt to coin a word for today's vehicular mayhem in the Netherlands, and Dutch would be more appropriate, anyway. What we have here, from what I've heard, is the typical disgruntled guy who'd recently lost his job. Whether he was trying to do damage to the queen's tour bus or simply wanted to crash her party, I can't say. Don't be surprised, however, to hear sarcastic gun nuts say that this proves that we should ban cars.