I've watched this 10 times and I still don't know what happened.....

I've seen that Dart disaster before. I think the guy is Canadian, from Edmonton if I recall. Story goes he just got the car the day before. I can't remember exactly what happened, whether he hit reverse or the rear brakes locked up or something else. I do remember it wasn't ALL the driver's fault as there was some weird and unexpected mechanical issue. Sucks any which way you look at it.