Serial Episode 5

After listening to this episode, I believe even more than before that Jay is a liar.  He continually changes his story, which to me means he is covering himself.  I have doubts that Adnan did it simply because of that.  There isn't anything about Adnan that tells me he didn't do it, only that Jay appears to be a liar.  If Jay did do it, I think he had Adnan help him, which explains why they both have so much information to give.