I presume from this example, IF David Harris discovered his wife was having an affair, he would have been heroic if he slowly killed Amy Harris while her daughter screamed for him to stop. that's how the makers of this "based on real events" believe people should resolve their marital difficulties.
If revenge killing for having an affair is heroic then David Harris SHOULD have killed his wife because, in reality, she was cheating on her husband, a fact that was hidden from the viewer. This was proved by the private detective upon whose work the movie was based. That private detective has come out against this movie.
This movie claimed to have been based on real events but it was really based on half-truths. It caters not to those who seek truth or equity. It caters to sick, violent people who will use anything to justify domestic violence. Perhaps that's is the one good thing about this movie. It exposed that men are commonly victims of domestic violence at the hands of their wives.
I guess from the film we are supposed to feel sorry for this murderous, cheating wife who opted to kill her cheating husband. Rather than getting the maximum penalty she gets off with twenty years. Boo-hoo, what a tragedy. If the husband ran the wife over a few times he would have gotten the maximum penalty and CBS would be whining how he should have gotten more. No one should expect women to be treated like grown-ups until they accept their punishment like men.
Why did Amy Harris' own mother and brother say that she should not have had access to her own kids because of how dangerous she was. I guess all those facts would have interfered with this film's agenda.