As for the key breakthrough to solve the disappearance and murder case of Ms. Lai in Hangzhou, where is it? Judging from the police report, the murderer Xu Moumou admitted that this was a premeditated murder case. After killing his wife, Ms. Lai, Xu moumou dismembered her body and threw it into a septic tank. The purpose is to destroy the body. However, when the police came to Xu's home for the first time 1 time, they did not find any key clues. It can be seen from here that Xu's modus operandi is quite sophisticated and his anti-reconnaissance ability is very strong, which may be related to his previous experience as a soldier.
In my opinion, there are two main directions. First, Ms. Lai disappeared at home for no reason, wearing only a pajamas, which is extremely abnormal in itself. In addition to Ms. Lai's initiative to leave home, the first suspect in this case can basically be presumed to be her husband Xu Moumou, that is, classified as an acquaintance. It is worth noting that after Ms. Lai disappeared, her wallet and mobile phone were not carried, which was even more suspicious. This case is likely to be committed by an acquaintance.
In addition, when interviewed by the media, Xu also revealed many clues. At that time, he told me that with his wife's IQ, there was no way to escape surveillance and walk out of the community alone. This sentence has already revealed clues, because he originally wanted to belittle Ms. Lai's IQ. However, this sentence just shows that only he has that IQ and can escape all monitoring in the community. When the media broadcast the story of Xu Moumou, most netizens transferred the suspicion to Xu Moumou. It can be seen that even ordinary netizens can see through Xu's verbal tricks, let alone professional investigators. This practice of Xu Moumou is obviously intended to mislead the case handlers.
In addition to the above two points, the key breakthrough point of the police is them. When investigating the water consumption of Xu family, it was suddenly found that the water consumption of Xu family was as high as 2 tons on July 5. Because the police didn't find any effective clues in Xu's home, the water consumption in his home was 10 times more than usual, which is very abnormal. This only shows that the Xu family put a lot of things into the sewer that day. Without a reasonable explanation, the vigilant investigators immediately
So the police quickly conducted a comprehensive inspection of the septic tank in the community. After 25 hours of uninterrupted investigation, 38 cars of feces were washed and screened, and finally suspected human tissues were found. After DNA comparison, it was confirmed that Ms. Lai's human tissue had been killed, and her husband Xu Moumou was suspected of committing a major crime. Again, as long as Xu commits a crime, he will leave a lot of spider silk.