The following accident took place in Denmark during a storm on 2/22/08.
Here’s the first view:
Here’s the second:
Yes – that is a truck at the base of the windmill when it self-destructs. I’m not sure if I can see people near the truck in the video or not.
The “cause” of the accident was the failure of the brake that limits the speed of the windmill during a storm. The speed of the blades were approaching the speed of sound when they failed.