Not knowing much about him or what he's saying, whether he's consistent with the evidence etc, I'm not ruling him out. We really have no idea what LE's thoughts are about him either, to my knowledge anyhow. I find it kind of odd that he saw Casey every day, Caylee used to go there, then for a whole month he doesn't see her, and his GF has obviously ditched her (whether it be with her nanny (yeah right), babysitter, family etc it's a long time to spend away from your daughter.) There are a lot of odd things about this case!
IMO