Haven't seen anything written about this yet, just wondering if this has been talked about yet. theirs clearly a spider on the neck of locke's body, and i think the best bet is that this is the medusa spider. I've thought for a while that they were going to bring back the medusa spider to make someone who appeared dead, not actually be dead. It's the only reason I can think that genius like Cuse and Lindoff would have introduced the worst characters in lost history (Nikki and Paulo). I'm not saying it will necessarily be Locke that isn't dead but it could explain why Christian's, Yemi's, etc. bodies have been gone when Locke's is not. If I'm way late on this theory I'm sorry, just lookin to get some feed back.