When Chris brought it up with Thomas in the recent interview, Chris mentioned it in relation to establishing mens rea (criminal intent). I believe that establishing criminal intent is one of the necessary elements to proving responsibility for a crime beyond a reasonable doubt.
I'm not an attorney - I just happened to catch Chris referring to that, so if someone else can better explain how this would come in at trial, that'd be great.
It means that there is evidence of guilt
in the mind of the defendant. That his mind, itself, created situations and actions that showed guilt. Usually, it takes several witnesses and certain kinds of testimony to show that the defendant had/has a guilty mind.
For example, he's digging through the trash in Poncha Springs - is that evidence of a guilty mind? Nope. Not to me, if I were a juror.
Getting rid of/selling off Suzanne's possessions? Hmmm. That is a clear indicator (to me) that his mind
knows she's not coming back. Anything of that sort can be viewed by individual jurors as
mens rea and if all 12 have the same view, that's how our justice system works.
Mens rea is actually a powerful doctrine that's been around since, well, Roman times. Nearly all cultures recognize it.
If your actions or speech betray that, in your mind, you know you are guilty...what then, Barry? I bet we'd all differ on which of his actions and words make us think he has this quality.
To me, it's the unspent funds that could have gone to a private investigator; it's the use of a gun to warn off his own brother-in-law and party while they were trying to search for Suzanne; it's his trip to Mexico and showing the opposite of grief; it's his failure to organize some kind of memorial, fund, or other recognition of her before moving on with a new woman...
IOW, it's not just one glimpse into his mind - but my ongoing sense of it (and I bet his internet/GPS use will show more evidence of guilt - but not "in his mind").
Being unable to face people (to seek human comfort) when his wife had just gone missing (instead, staying with firefighter friends at George's house), is on my list. But I'd want more. Did he spend a lot of time with his daughters, as well? Because the Fire Chief makes it sound like it's all firefighters over there - and Barry staring out the window (not comforting his daughters???
I want that bit of the timeline very badly).
IOW, the things we know he did (rummage trash, buy vacant lot, make several trips to Indiana) all need a timeline and some context. Loading all he owned up on two trucks on the day he was arrested - well...sounds like he was fleeing, to me. And people will differ on this - but as more contexts come out, we'll find more consensus.