If you describe something as mutilated, it has been disfigured or maimed. After a disaster, it can sometimes be hard to identify the mutilated bodies.
The adjective mutilated is a gory word that's good for describing maimed or injured bodies. When something's mutilated, it's often harmed in such a way that it's no longer recognizable. A mutilated face might be cut so badly that you can't identify who it belongs to, and a mutilated arm could be crushed so terribly that it no longer looks like an arm. The Latin root mutilare literally means "with a part cut off."