Good post Irish Mist and welcome!!! This sentence from your post stood out for me:
Darin doesn't make sense, either... you hear glass breaking, and your wife screaming hysterically-- yet you take the time to put on jeans?
What actually makes even LESS sense if you can imagine, is that Darlie and Darin cannot seem to agree on just what Darin was wearing when he came down stairs.
In one statement, one of them claims he sleeps in the nude, so he put his jeans on when he heard the screams. As you posted, this makes no sense.
I've got three children and it also makes little sense to sleep nude when you've got an infant waking at all hours of the night - but of course its not unheard of, so I'll get back on track.
In another statement, one of them says Darin only took the time to put on his glasses, as he's blind without them. Another statement has him leaving them upstairs.
It may have happened, but I can't remember a statement where he put both the jeans and the glasses on. So, either he was nude, but he could see. Or, he had his pants on, but he was blind when he noticed all that stuff he said in his statement.
We may never know the truth, but its inconsistencies like this that make many speculate that Darin was way more involved than we've heard yet.
Hopefully, once they accept the fact that Darlie will be executed for the murders, one or the other will step forward and finally tell the truth.