Looks like when he wrecked he mangled his leg, and sat there and bled to death. He's definitely dead or somebody would (hopefully) be rendering aid to him. At least there are no pointers in this set.
He fell off a roof!
Or he was smokin crack on the roof. Overdosed, fell off the roof ,and when he hit the ground he was shot in the head!
That should suit all you conspiracy nut jobs!