12 years and still the writers get to think of interesting topics to entertain us. Wow, the mother had an affair with her own son and had a son --- that's a bit confusing. The murderer turned out to be the unwanted son. It's weird but no one can argue with it's creative thinking!
The reaction of Jim of judging the wife for adultery is so typical. Doc was so right to say that the bad experience of Jim has clouded his judgement. Aint that true for all of us.