LE talks to get more info from the public. IT's not a good sign they are talking so much. Means they have very little and need more, and they've pretty much said so. There always is a lot of pressure on LE to make progress on these high publicity cases. THey also want to look good, look tough, look smart. IMO they have not done so well here. If they don't get something from forensics, they may just have JM in jail for reckless driving with a all time record charges and sentence just to show they got him for something.
What I am so hoping for right now that if JM had anything to do with this, and it does look probably that he did, that he gives LE some info. Without it, the chances of finding her body even are pretty low. LE does'nt do so well in those types of things without help from the perps. Also, there is a very small chance, she was left alive but hurt some place, and she may still be alive. So the focus should be to try to get Hannah back to CHarlotteville or to her parents, alive if at all possible, and if not , for closure purposes.