I've been so far off with my interpretations lately, maybe you should figure out the opposite of what I say here and you might finally know what's going on... The impressions I got from the PC are that they have a fairly good idea what happened, and a good idea who did it, but they aren't entirely sure yet if it was against MT's will or not. It seemed like they were trying hard not to say anything that might make someone holding her against her will panic and kill her, and not say she had been abducted until they got to know her well enough to know if she had planned/co-planned it. If they were to make their timeline public, it might make it too obvious who they believe is responsible; the same thing is true for saying when/where she sent the SC photo, where she was when she "disappeared", why they believe she's still alive and several other things.
Other odds and ends: I believe someone posted in the last thread that a 30 year old man went in and said he was the one taking the pictures and was cleared (I'm not positive about it saying he was cleared, but that's what I remember.) I don't think a 3 hour phone call with a parent is all that odd. When my son (who lives in a different state) had a phone, almost every call we had, which was 2-3 a month, lasted 2-4 hours. I'm still not totally convinced that it was a male who was responsible, but I'm not sure why a female would be either. Oh well, all MOO.