I think we did get off track a bit--but the question of anger came up because we are trying to understand one big question:
Which one of the 2 parents, was more likely to have snapped that night, and strangled those precious babies?
I could be wrong, but I feel like it is more likely that CW did for a couple of reasons.
One, if you compare the two, SW was more expressive, emotionally extroverted, and had a lot of supportive friends and family that she confided in regularly. She had been in serious relationships before this one, and seemed to be able to communicate her feelings to her husband, both good and bad. And she had just spent 6 weeks away from her husband, already knew about the possible separation, and had already hinted to a few friends that she would need major support soon because of these changes ahead.
So I don't feel like she would 'snap' and kill her babies, when she already knew about the possible separation looming. It would not have been a shock to her.
But people close to CW have said he was the quiet, introverted type. This was his first serious reelationship---and suddenly he had 2 kids, one on the way and a wife with many illnesses and medical bills. One Bankruptcy already, and another possibly looming. He was apparently often criticized by his wife, and she bossed him around. And yet, those close to him say they have never seen him get angry. So that makes me think that he was a possible candidate for someone who might explode in anger at some point. he was not able to express himself as readily as his wife was.
That is why we were discussing anger. If he was being verbally berated, and he had a girlfriend that he wanted to pursue, where would that anger go, if he was not showing it or expressing it?