Well, from the body language TH exhibited during the first PC, I thought she looked like a terrified woman. In particular, (to me), were her leaning her head on KH and DY. With DY, it looked like she was trying to comfort her. When she did it with her husband, she stole glances up at him, which looked fearful.
Not knowing these people, I feel almost mean saying this, but my first impression from that video was that KH was completely indifferent toward his wife. I got the distinct feeling that he simply does not love her and she seemed afraid. However, considering the circumstances, this may be completely normal.
While I expected that LE had found out something terrible that had prompted KH to file for immediate divorce and a RO, this turn of events is astounding. Again however, it opens another whole can of worms. Typically, women do such things when the relationship is abusive (seeking revenge), when they are having an affair or when they are looking for financial gain. I wonder what will come out next.
I just keep thinking about the fact that TH raised Kyron from infancy. Looking at some of her pictures and captions, she appeared to be very proud of him. It's so hard to reconcile that image with her having killed the little boy. Then again, CA's pictures of Caylee made her appear the doting and loving mother. So who knows what is in someone's heart and mind when they do the unthinkable.