What are the cases in Detective Conan that undermine the three views?

Conan never sheltered criminals when he was a detective. He always exposes him the first time and then brings him to justice ~

But Conan finally spared a prisoner, which is in "I can't forgive at all" (? TV727-728？ I don't know if Conan spared other prisoners, but this is really the only time in the series I have seen.

To put it simply, this episode is that a couple often quarrel, and the husband can't stand it, so he kills his wife.

It seems too short. Tell me more about it:

My wife is a funny person with a bad temper. Because of her husband's lifestyle, she often quarrels with him.

Recently, my wife has become more and more grumpy (in fact, because she is pregnant, but neither husband nor wife knows it)? ,? The husband couldn't stand it and had the idea of murdering his wife.

The husband and wife got the help of the juvenile detective team and invited the juvenile detective team to have a barbecue at home, while the husband made a murder plan; The husband first made his wife angry in front of the detective team, giving everyone the impression that his wife was grumpy; Later, when the detective team was eating meat in the yard, the husband took the opportunity to take his wife back to the house;

The husband pretended to burp, and when the wife saw it, she took a knife and pretended to kill him to scare him in order to help him not burp (this was her husband's plan, because he knew his wife was funny, so it was just a strange thing)? ; The husband tried every means to lure Bumei to see his wife killing with a knife, and Bumei was so scared that she ran away. My wife scared everyone and was about to put away the knife. The husband grabbed the knife and put it down.

When Conan and others came, they only saw the result of his wife's murder. Because Bumei saw that his wife was going to kill first, she ordered him to defend himself. Later, the husband regretted giving his wife blood transfusion and planned to commit suicide. Conan chose to hide after reasoning with her husband on the rooftop.

One possible reason why Conan spared the prisoner was that her husband really tried to save his wife and committed suicide, and he did have repentance. However, there are many prisoners who sincerely repent, but Conan has never spared anyone. For example, the episode of Takagi picking up money (? TV740)？ ,? The prisoner turned over a new leaf and kept his place for fifteen years, just because he quietly delivered 30 million to the victim's family the day before the statute of limitations expired. Conan dragged him into the police station. In this episode, the prisoner's sincerity in repentance is higher than that of her husband, which is still the end of Conan's lesson.

Therefore, whether the husband repents is probably not the main factor for Conan to let him go. The real key reason is probably because their child is going to be born soon. In order to maintain the integrity of a family and ensure that children can have a father in childhood, Conan spared the murderer, no matter how sinister his previous criminal plan was.

Finally, the husband and wife made up in front of the hospital bed, watching their wife reprimand her husband and smiling behind her. I don't know how long this "harmony" can last.