Unfortunately I do not have any backstory, but by the look of it, the dude got run over by a truck, but instead of getting crushed by the wheels, his head got tangled in a frame of truck’s underbelly. The impact with the frame smashed his skull and kicked out his brain, but he also looks broken in a few places. It was an instant death for sure, though very unpleasant one.

I don’t know where the accident happened, but it looks to me like it was somewhere in Asia. Lack of pointers tells me it’s probably not Thailand, but I could be wrong. China, perhaps?