For John, BLUF: I suspect that even 10,000 years ago this sort of thing happened. Nothing to see here; just move along.
I was surprised that it took a while for the Drudge Report to note this story out of Graz, Austria, where a man used a car and a knife to commit multiple murders.♠ From the BBC we have "Fatal car crash on crowd in Austrian city of Graz". The story is from yesterday. An update from today's (UK) Independent.
It is being pushed off as insanity.
And, I would agree with those who would point out that being a bystander with a firearm, one would not have been able to prevent the first part of this. The knifing, on the other hand, might have been stopped by a little old lady with a 22 cal pistol.
Regards — Cliff
♠ Four is the magic number for "mass murder", per the FBI. With one person in the hospital in critical condition, this might make the definition.