According to the address of her sister's house provided by Shi Meiyun, Han Yuchao, Xu Meng, and Xue Ran were found in less than 20 minutes by car. Shi Meiyun's sister is called Shi Meiyu, and her brother-in-law is named Yan Feng. The husband and wife are the owners of a car repair shop. The car repair shop is called Fengyu Auto Repair Shop, implying the names of the two husbands and wives - "Maple" and "Jade".

The three walked in, and a man received them. He is Yan Feng, Shi Meiyun's brother-in-law. Han Yuchao and the others showed their police ID and explained their intentions. Yan Feng hurriedly entered the house and called his wife Shi Meiyu out.

The three of them looked up and saw that Shi Meiyu and Shi Meiyun were very similar in height and size, and the two sisters looked similar. It's just that Shi Meiyun has short ear-length hair, and Shi Meiyu has long hair and waist-length black straight.

Seeing Wang Junyong's photo, the two couples said that they only knew the news that their brother-in-law Wang Junyong had been killed, and their faces showed sad expressions. Shi Meiyu said: "Our car repair shop was opened at the expense of my brother-in-law, without him." My husband and I are probably going to drink the northwest wind now. ”

Xu Meng asked, "Then how is the relationship between your sister and your brother-in-law, okay?" ”

Shi Meiyu replied: "When my sister and brother-in-law first got married, their relationship was fine. However, my brother-in-law is busy with business and entertainment, so sometimes, it is inevitable that he will play with some people of the opposite sex, and sometimes the action language is ambiguous and intimate. But my sister didn't understand, so the two would often quarrel over these things. ”

Xu Meng then asked, "Your sister said that she came to you on the night of the 15th and took it for more than two hours. There is no such thing. ”

Shi Meiyu nodded, "Yes, my sister came to my house at about 6 o'clock and stayed until about 7:30 before going home." Yan Feng continued: "Yes, I sent the eldest sister home." ”

Han Yuchao calculated in his mind: just now, the three of them drove for almost 20 minutes. Therefore, Shi Meiyu said that Shi Meiyun left here at half past seven, and Liu Baoan said that Shi Meiyun arrived home at nearly eight o'clock, and the time was right, so they should not be lying.

Han Yuchao asked if there were any other witnesses to prove it, Yan Feng said: "I played mahjong at my neighbor's house that night, and the two sisters have also been there several times. When I went to dinner, my eldest sister played for me for nearly half an hour. ”

As she spoke, Shi Meiyu wrote down the names and contact information of the three people, and pointed to the address of one of them with the three people, "We played at their house that day, you can go and ask." ”

So the three of them left Shi Meiyu's house again and went to their neighbor's house to verify the situation. The door was opened by an aunt who was almost 50 years old. After listening to the inquiries of the three people, the aunt replied: "Yes, I did play mahjong with the two of them on the night of the 15th. It started at almost 6 o'clock and continued until more than 8 o'clock. During this period, Shi Meiyu's sister also came and played with us for about half an hour. At around 8 o'clock, the two of them said that they were tired and hungry, so they left early. ”

Han Yuchao continued to ask: "Is the relationship between the two of them good?" ”

"Okay, this little couple is very affectionate. I feel that I can't find a happier little couple than them. ”

Hearing this answer, Han Yuchao was a little surprised. Maybe I've been in contact with criminal cases for a long time, and I always see something negative.

After the investigation was completed, several people were finally able to return to the police station. Han Yuchao reported to Jiang Chonglang: "Brother Chong, after our investigation: the relationship between the deceased Wang Junyong and his wife Shi Meiyun was not good, and the two were once ready to divorce. Moreover, Shi Meiyun's sister and brother-in-law also fought with Wang Junyong in order to stand up for Shi Meiyun.

But on the night of the crime, Shi Meiyun was at her sister's house at 6 o'clock, then returned to her home, and finally stayed at the foot massage shop until 10 o'clock. The former has his sister and brother-in-law and neighbors who can testify, and the latter has security guards at the door and a foot massage shop clerk who can testify, so Shi Meiyun did not have the time to commit the crime, so her suspicion should be ruled out.

Moreover, we get an important clue, that is, Wang Junyong was picked up by a mysterious woman wearing a white cheongsam and driving a white car before his death. It was around 6:20 p.m. that night. ”

As soon as Han Yuchao's words fell, Xu Meng over there immediately said excitedly: "The woman in the white cheongsam." Really, when we went to the place where the body was found today to investigate, some people also saw that a woman in a white car and wearing a white cheongsam appeared nearby on the night of the crime. ”

There was a major breakthrough in the case, and the people of the serious crime team were suddenly very excited. Xu Meng went on to say that as far as they knew, there was a restaurant about 20 kilometers back from the site of the dumping. The hotel closes at nine o'clock every day, and on the 15th, the owner of the hotel was about to close for a rest, but a group of college students came that day. The group of students was going on an outing to the reservoir in front the next day, so the store closed later than usual that night.

"It was about nine o'clock that night, and the students were in the restaurant before they finished eating, so they closed later than usual. I was sitting at the door blowing the wind, when a white car drove up and stopped not far in front of our hotel, and a woman in a white cheongsam came out of it, wiped the windshield and ruffled her hair. So he went back to the car and drove away. The whole process takes no more than ten seconds. ”

Xu Meng went on to say that he asked the hotel owner if he had seen the woman, and the hotel owner said, "She didn't turn around, so I didn't see her." I just remember her long hair and high heels. You said that a woman wore a white cheongsam at night and had such long hair, at first glance she thought she had bumped into a female ghost. However, the group of students were not scared at all when they saw her, and they were very excited. I've seen people taking pictures of her with their phones, so you can ask them. ”

Jiang Chonglang asked: "Are those students still there, do you know which school they are?" ”

Xu Meng said: "I don't know, they are already gone, but a student once asked the hotel owner where to rent a bus to take them to the reservoir in front, and the hotel owner gave them a few phone numbers of the driver, and we tried to find them." As he spoke, he took out a piece of paper with 5 or 6 mobile phone numbers written on it, which seemed to be the bus driver's.

The members of the serious crime team simulated and restored the process of the murderer and dumping the body: the murderer made an appointment with the deceased Wang Junyong in advance to meet at night, about 6:20. A woman wearing a white cheongsam picked up the victim Wang Junyong from her home, and then tricked him into taking sleeping pills on the way. In a secluded place, he poisoned a sleepy Wang Junyong with carbon monoxide in a car. Then drive straight to the suburbs, throw the corpse in the wilderness at nine o'clock, and complete the whole process, which takes about two and a half hours.

After the analysis of the case was completed, Jiang Chonglang proposed to continue the investigation in two aspects: one was the social relations of the deceased before his death, especially the social relations of the opposite sex; On the other hand, try to find the students who had dinner at a restaurant near the scene of the crime that night, and see if they can get further information about the woman wearing the white cheongsam. The big guy agreed, so he started the investigation in two groups.