Just listened to the 9th episode today. I totally think Jay must have done it, though, or been involved in some big way as I don't think he would have implicated himself by telling them he helped bury her or showing them where the car was if that was his only involvement. I keep thinking that maybe the whole podcast is an experiment to prove how a story being told one way can convince you of a lie, and that Adnan maybe did actually do it, but then I think about little details like there not being payphones at Best Buy and it makes me think he's innocent. Not sure if spoiler tags are necessary but just in case!