If he hadn't been caught by the police now, he would be proud of his meticulous modus operandi, superb anti-reconnaissance ability and extraordinary IQ. Don't forget that he once told reporters that the lady's IQ has been stuck, and someone must have taken her away. Judging from this, he is proud. He thinks he is very clever. From the beginning, he thinks it is easy to cheat a lady.
However, not all people are Ms. Lai, and not all people trust him like Ms. Lai. Irrelevant people who have no feelings for him will immediately suspect him as a suspect when they look at this matter. Because no one will disappear unconsciously like the person who sleeps next to him.
In fact, how can a heartless person like Xu regret killing someone? If he regrets, if he hesitates, he won't commit the crime, because he can choose to give up many times in the whole premeditated process, but he doesn't. So he certainly won't regret killing someone, but will only regret that he didn't do it beautifully enough, was noticed by the police, and didn't get the property of the coveted lady.
Xu thinks his wife is a thorn in his side. A man who eats soft rice just wants to take his wife's property for himself and get a free marriage room for his son born to his ex-wife. If he can't do it, he will kill his wife and dismember her body, thinking that this is perfect and he can have property that doesn't belong to him. He is greedy and vicious. Such people have no real regrets. Even if Xu Can shows regret, it is not a conscience regret, not a fear of life regret. If Xu later regretted it, I believe there is only one aspect: he regretted the "imperfection" of the means of committing crimes, and he regretted his omissions. Xu will not regret killing or breaking the law. He may pretend to "regret" to mitigate the punishment. Cruel people, blood is cold.