Yang Qianfeng took Zhang Lihua, Yi Zhonghua and Wu Dahai to the criminal police detachment of the H City Public Security Bureau the next day.

Because H City and Jinshui County are adjacent, all along, the cooperation between the two places is very good, plus Yang Qianfeng handled the case caused by the forest boundary dispute between the two places when he was working in the Linmao Police Station, especially the case within the case that occurred in this case, and the construction of the large joint defense mechanism he engaged in at that time, the impact is very great, Yang Qianfeng's name has long been a mountain drumming - the reputation is outside, and the detachment leaders have long heard of him, and recently he has carried out a wolf removal operation in Jinshui County, and the Provincial Public Security Department has forwarded their work results and experience, so he attaches great importance to his arrival.

There is another person who is the happiest with Yang Qianfeng's arrival, that is, Fan Meihua, she immediately ran over to meet Yang Qianfeng and Zhang Lihua, and repeatedly said that she is responsible for anything in life.

After listening to Yang Qianfeng's briefing on the case and his request for cooperation, the leaders of the detachment immediately arranged for a deputy detachment leader of the detachment and the Xiewai Brigade to fully cooperate.

According to the cooperation of the detachment, Yang Qianfeng divided the personnel, and sorted out all the major and important cases that had not been solved in H City (including the following counties and districts) in the past ten years, and looked for the possibility of collusion and merger; A group investigated the missing persons in H City for 90 years one by one, and strived to find out the identity of the victim of the first case of Langshu; The group investigated the last time Qian Dali did business before leaving Langshu, as well as the activities of Li Wanqiu, Li Lisheng, and others in H City, focusing on finding out who Li Wanqiu and others did business with, as well as their performance in business, and striving to understand the true scope of Li Wanqiu and others' activities from these people who did business with Li Wanqiu and others, so as to expand the scope of the investigation.

Due to the attention of the leadership, the H City Criminal Police Detachment Xiewai Brigade took Yang Qianfeng and their affairs as their own business, worked overtime day and night, and after three days of hard work, although no valuable clues were found, but during the work, there were two things that attracted Yang Qianfeng's attention:

First, there were four homicides and five lives on the section of the road from H to L (a national highway) in F province adjacent to H city. This road is through the deep mountains, many sections along the way are basically no villages, even the foot of the mountain scattered households are few, four cases, one occurred in the road section of the city of H, the victim was beaten to death, thrown into the bushes under the cliff on the side of the road, the masses found the victim's body was in the summer of 98, when the body was highly decomposed, according to the forensic examination of the body, the deceased was a man, in his forties, his head and other multiple bone cracks, and finally determined to be homicide, it was speculated, The time of the victim's death may have been around January 98. This case has been investigated by the H City Police for a long time and has not been solved. Before that, there were two such cases in the road section of L City, and the situation was similar, and the case has not been solved. From September to October of '98 (estimated time), another case was found in the territory of L City, and two bodies were found in this case, and after the examination of the bodies, they were shot to death, and two bullets were taken out of one of the corpses, and three bullet casings were later found in that section of the road, and it was determined that the victim was killed in this section of the road. This case has aroused great attention from Province F, City L and the county where the case occurred, and City L has set up a high-level task force to supervise the case, and Province F has supervised the case.

Second, after investigation, Li Wanqiu and his family not only had an accident with people in H City, but also went to L City in F Province to do business.

Although these two things cannot be linked to whether Li Wanqiu and them committed a crime at present, Yang Qianfeng thinks that no matter what, L City is worth investigating. Because the criminal police detachment of H city and the criminal police detachment of L city have close work contacts, and the case of two people killed in the shooting case in L city was specially sent to investigate in H city at that time, and the relationship was very good, the detachment leader learned that Yang Qianfeng and they were going over, and immediately helped him contact. So after Yang Qianfeng and they arrived in L City, they quickly carried out their work.

Because these four cases were discovered very late, and the bodies were either highly decomposed or moderately or mildly decomposed, on the surface, Yang Qianfeng and his team were unable to combine these cases with their own cases, and judging from the investigation of the four cases, the source of the corpses was not clearly investigated, so it was impossible to verify whether these victims had any contact with Li Wanqiu.

However, the high-standard task force set up in L City at that time did do a lot of work, and there were more than a dozen dossiers alone, which were piled up there to be one or two feet high, because it involved guns, and also specially made bullet mark identification, Yang Qianfeng picked it up casually and looked at it, it turned out that the guns in the two victims were not one gun, but at least two guns were shot, thinking that technology is really powerful, it can restore the situation at the scene of the crime at that time.

After reading this file, he suddenly remembered that Wang Dajun's gun should also be appraised strictly speaking, but he didn't say it at the time, but put it in his heart, and he called Zhou Jie in the evening and asked him to send Wang Dajun's gun and the bullet casings and warheads extracted at the scene of the arrest to the Criminal Division of the Provincial Public Security Department for identification the next day.

Due to the poor conditions for the case to be combined with the Langshu case on the national highway in City L, Yang Qianfeng and his team then carried out a series of mergers with other cases, and at the same time carried out an investigation into Li Wanqiu's situation in City L.

After investigation, it was found that Li Wanqiu and his activities in L City were actually more frequent than in H City, and they found the individual hostel where they often stayed in L City and two people who mainly did business with them.

On the afternoon of the second day after arriving in L City, Yi Zhonghua and Wu Dahai called the innkeeper to the local police station to learn about the situation, while Yang Qianfeng and Zhang Lihua continued to look for people who were doing business with Li Wanqiu, and they worked until 8 o'clock in the evening before meeting at a small restaurant for dinner.

Before dinner, Yi Zhonghua reported the reaction of the innkeeper to Yang Qianfeng and Zhang Lihua. He reported: "The owner of the inn still has a good influence on Li Wanqiu, thinking that they are very trustworthy and never owe him money. The reaction said that Li Wanqiu and they wanted to open it very much, and every time they came to deal with the goods, they had to play in L City for a few days, especially Li Wanqiu, who was very good at communicating with people, as long as he was doing business, he could talk to him, and he was also generous, no matter whether the business was successful or not, he invited people to dinner. After speaking, he took out a piece of writing paper and said: "Here is the list of businessmen who are with Li Wanqiu and them provided by the boss, in addition to the ones you found in the afternoon, there are two other ones that he remembered in the afternoon." ”

Yang Qianfeng took the transcript and said while looking at it: "The boss thinks they are very credible, has he ever met someone who is not credibility?" ”

Wu Dahai smiled and said: "I also asked him like this, he slapped his thigh and said, 'I really let you say it, ** years ago, the hostel was deceived once not long after it opened', it was so funny, I want to laugh when I think about it." ”

Yang Qianfeng asked while drinking water, "What's the matter?" ”

Yi Zhonghua hurriedly said: "That's the case, at that time, his hostel was to stay first and pay later, no matter how long he stayed, he paid when he left." A businessman from Province J seems to be very rich to live with him, and he has lived there for more than a month, and he has not taken a change of clothes and other things for a day, and he has not come back, which is equivalent to being cheated of more than a month of house money. ”

Wu Dahai continued: "This boss is a little stingy, ** years ago, it seems to have happened yesterday, and he slapped his thigh angrily. ”

Yang Qianfeng was shocked when he heard this, and said seriously: "** years ago, you didn't ask what that person looks like?" ”

Yi Zhonghua and Wu Dahai looked at Yang Qianfeng with a serious face, looked at each other, shook their heads, and said, "No." Then he looked at Zhang Lihua again.

Zhang Lihua glared at him twice and said: "It's really stupid, that person is very rich, and he didn't take anything and left suddenly, he will definitely come back, and if he hasn't come back for ** years, it means that something may have happened to that person!" Let's talk ...... again."

"Don't talk about it." Yi Zhonghua suddenly slapped his head and said, "I blame me for this, I didn't ask more." Saying that, he stood up, walked back and forth a few steps back and forth in the very small box, stopped and said, "I understand what Yang Ju and Zhang Jiao mean, this person may be the victim of the first case in Langshu Town?" ”

Yang Qianfeng nodded and said, "Yes, because Li Wanqiu and they also lived there at that time, which means that they are all familiar with each other." He stood up and said, "Let's go find this boss again." ”

Zhang Lihua stood up and stopped him and said with a smile: "Let's eat and then work!" Anyway, he couldn't run away, and my stomach was hungry. ”

Yang Qianfeng thought about it and smiled and said, "Yes, everyone is still hungry!" He sat down and said, "Let's eat, and we'll go to him after dinner." ”

Wu Dahai lowered his head and said embarrassedly: "I also used his words and the way he talked to him as a small episode to laugh at him!" I didn't expect it to be such an important clue, or the instructor scolded right, it's so stupid. ”

Yang Qianfeng picked up his chopsticks and pointed at Wu Dahai and Yi Zhonghua and said, "If you want to be clever in the future, you have to be clever for me, otherwise no matter how important the clues are, they will slip away from us." He put down his chopsticks and said, "But don't blame yourself for this, but fortunately, you can still let him tell this little episode according to his words." This is still commendable. ”

Yi Zhonghua blamed himself and said: "Praise a fart!" It almost screwed us up. ”

Zhang Lihua urged the food at the door and then turned around and said: "Director Yang is right, although I just said that you are stupid, but that is my angry words, after so many years, it is still very good to be able to let him talk about this little episode, but it is a pity that you did not ask any more questions, otherwise it would be more complete." ”

After a quick meal, the four of them immediately took the innkeeper to the local police station.