On the one hand, I didn't like his demeanor in the video. Odd. Body language defensive and protective. "Her people." "People got concerned." Unemotional. Did not really mention his children or concern for them.
The argument issue is something too.
On the other hand, his comment "this has got to stop", could that have to do with her leaving a lot? Leaving for six weeks with the kids. Then a few days in AZ. Is she seeing someone? Is she over him?
I also don't like her frenetic sleeplessness as described in a post.
Also, if she got home at 2, can you really harm someone and then dispose of three people and any obvious evidence and then her ready and go to work by 5?
I mean it's possible but seems tight.
Hard to gauge right now.