On a side note I thought long and hard about this one. I don't fully believe that he killed her, I also don't believe she was immediatly dead following what I assume he was guilty of a sexual assault and kidnapping. He has stayed too quiet for too long on this, and I do believe he is covering for someone. If she had been dead, I believe he would have given up more information. If he conciously did not know where she was, then he could have without guilt been able to say "I dont know". For the fact that her DNA was found where it was found and the comment that he made to the family, I dont doubt he has some psychological problems.
From the things I have heard people do, I wouldn't be surprised if she wasn't traded for drugs, which is a harsh thing to say, but I have met some awful druggies in my time. Giving up information like this would not only incriminate himself, but a drug dealer who would retaliate. I also considered the comment on the sex offender. Curious to learn more about that, but we'll see if this skull belonged to poor emily. I pray that someone talks soon, maybe this will put a flame under someones arse who had something to do with it. With all the tv shows airing stuff on forensics, maybe someone might get scared and come forward. Someone knows something...
All of this is just my gut instinct. I was right about the OSU student who was later found in TN who fabrictated his whole story. Still haven't confirmed my thoughts on a lil "travel trist" though.