Watching this 10 minute interview for the first time (saw it referenced, but could never find the link.) There are a few parts where it seems like his voice is shaky and even one time when he points his open hand to the interviewer (sign of honesty,) however, there are a few things that are really messing with my head...
First: He says, about when he called friends and family, 911, "everything I could do to get my fiance back." He didn't really know she was gone at this point. I mean, he could have said find my fiance because he was looking for her,
but "get [her] back?"
He touches his nose/ears/head a LOT, but notice WHEN he does it.
Towards then end, when he's not talking about how he feels about her missing, it's almost like he's laughing or about to smile. Like when he's talking about Murphy jumping on things. It looks like he's remembering a fond moment or sharing an anecdote about how silly this dog is, not worrying that this dog was trapped in this room while his fiance could be being hurt at that moment. He looks like the mouse that got the cheese.
When he talks about moving to Colorado, he uses some very cliche words, "safety-net of our parents," "grow up." He says, "we wanted to get out, we wanted to be that way." (listen to how it sounds, like he's pleading) Like he's trying to justify not already being that way, like KM (or someone else) accused him of needing to grow up. Now I see where everyone was getting that before....
After all that he says, "absolutely" while shaking his head no and then touching his ear...I believe the question is there should be something suspicious...
When he talks about if anyone can find the ping on a dead phone that would be the greatest thing ever, he seems to laugh a little, like yeah, no way that's going to happen.
Around the 7:40 mark when he says something happened to her phone, he actually moves back and positions his body at an angle to the interview that sounded like she asked the question. Like he knows it was destroyed and doesn't want the person to ask any more (kind of like when someone hides something and when you ask where is it, the instinctively move closer to where it is hidden to block you from it.)
He says he would always do stuff for her, specifies vacuuming her house... sounds to me like he did that recently
Going to watch it with out the sound now.
http://www.wlwt.com/r/28919291/detail.html scroll to the bottom to see the full interview (for anyone else that missed it or wants to rewatch)