After watching this I must say I might eat crow on this one. He is much more believable and not so "off".
I also found him very believable the first time I heard him interviewed (radio). Either way, I try to focus on the
content of interviews, not on the way people strike me, necessarily. Gary Condit struck me as being as guilty as sin in Chandra Levy's disappearance, but he wasn't. lol
I don't find JC off-putting in himself. I also didn't think his use of past tense was (necessarily) damning, nor his mention of the 24 time period. I did lift an eyebrow at the deflections in his 911 call (we've been together 6 years, questionable people are right down the street, etc.) but again, that can also be explained as his nervousness, his trying to guess what happened, etc.
I lifted a second eyebrow upon hearing they'd had plans Saturday to discuss their move to Colorado with family, but cancelled because she was tired. And I lifted both brows quite high regarding the paper-burning incident. But, all of that could be unfortunate coincidence.
What I
don't understand are the inconsistencies in the timeline and the gaps in his behavior surrounding his visit to her apartment, his reactions to what he saw and what he expected to see, and the delayed 911 call. But, there may well be an explanation for all that. In short, my mind is concerned but not utterly convinced when it comes to him.