Originally Posted by KRIM
I'd like to know too. From what I understood it's just a mask, albeit a lifelike one. The quick glimpse appears to be showing him taking off a human mask. Are they going for an organic disfigured look?
Maybe he uses somekind of poison gas that turn peoples faces like skull and kills them. Maybe he got that gas on his own face but he somehow survived. (sorry for my bad english)