I do not believe LE found anything to indicate a crime scene anywhere, especially since they still do not seem to know for sure she was abducted. Putting up tape while searching does not mean they found anything. LE has been pretty consistent in saying they don't have anything to tell them what happened to her. I do not believe they would be this quiet if they had proof of a crime or injury to Abigail, i.e just to make a suspect "feel comfortable". They messed up Celina's case, IMO, in thinking they had a "slam dunk" and then not being able to make a case at all. They can't afford to mess this one up too.
I bet the perp, if there is one, does feel pretty comfortable though, because I don't think LE has a clue as to what happened to her and if she is not found, no case at all will be made.
JMO