I don’t know where the video is from. It shows the aftermath of a fatal traffic accident and there’s not a whole lot left of the victim.
It would appear that a biker got run over and crushed by the truck. All that’s left of him now is a thick smear on the road, a foot sticking out from under the wheels, and a ripped out heart still beating on the road.
Props to Best Gore member @momox for the video: