In my heart I do not feel that this was premediated either. Josh doesn't seem like the "planner" type. As others have stated if planned then he came up with the most ludicrous alibi ever.
Have considered that the friend JoVonna may have stayed too long for his liking?
Or, yes, that he overheard Susan sharing something with her that did not make him happy.
That he had to actually make dinner himself due to their guest's overstay, and that really ticked him off, and started a chain of events.
IMHO, he's like so many of these guys, he was planning, but didn't know when or exactly how. It's like Scott Peterson,..............you could tell from going back a few months prior to Laci's disappearance that he was starting to form his thoughts, but his plan wasn't exact. It wasn't until he met Amber and she found out he was married, that his plan began in earnest.
IMHO, it's the same here. From what little we know so far, his plan began a few months ago when he, IMHO, began 'acting' the part of wanting the marriage to work out. Well, we can only, for now, see maybe two months back when it appeared their marriage was on the right track, but he wasn't going to church, (important in their particular circumstances, imo) and then going camping etc...................................but,...............Susan was 'FEARFUL' which tells a LOT!
Something wasn't right at home, although he was giving the outward appearance of Mr. Wonderful, Super Dad,..................
We've seen this before. Brad Cooper, Chris Coleman,.............outward WONDERFUL, behind the scenes their wife was terrified and then...........
Just sayin'
fran
PS......and I don't believe he thought she was talking. After all, the most important thing an abuser tells the victim, "What goes on in this house,......or what goes on between you and me,............is OUR BUSINESS and no one elses!"
I've seen this from a friend. I've seen it from some of these murdering husbands. It's a FACT! this is what they tell their victim...