Who would have thought or could it be possible that Dempsey is a good guy regardless of his means. He sad he was from a race or group who calls themselves the Sentinels an ancient group who's sole purpose is to protect us from ^ "them". I think I can see Shaun and him hooking up and collaborating even those Dempsey is hell-bound to kill him at this time and vice versa. I base this on his wonderment and amazement at Shaun's ability to avoid hurdles and stay alive. I think he knows the possibilities as to what Shaun is, at the least.