Quote Originally Posted by OumaFan View Post
I think there's a good reason why even if he can take over dead people's bodies he never got a chance to kill Jacob before, as I said it had to be a leader of the others.

But, why, before Locke, would he only take over Christian and Alex's body? If there's something to this theory it makes sense why he would take over Alex's body because she played a major part in getting Ben to kill Jacob. But why Christian? And nobody else?
He took over others bodies. The guy that Hurley saw from the psych ward.. Eko's brother, etc.. It could all have to do with things that he showed Hurley and Eko and whoever else he turned into to make all of the events add up to him killing Jacob.