Criminal Investigation Chronicle

On August 8, after several investigations and evidence collection, a decoration worker came into the sight of the police.This man is Li Dawei, an ordinary decoration worker on the construction site. His decoration company used to be an important partner of Xuezhong Real Estate Development Company. The two companies have been cooperating. Basically, the real estate developed by Zhao Xuezhong is handed over to this decoration company. Responsible for renovations, and this site is no exception.It’s just that Zhao Xuezhong’s company went bankrupt some time ago and mortgaged the construction site to another real estate company, but the decoration company didn’t replace it. Because of the renovation payment problem, the real estate company that took over gave the decoration company a lot less money, which means that those ordinary decoration workers, Faced with a sharp drop in wages or even a few months of working for nothing and not being able to get money.The decoration company also approached a lawyer and wanted to get back their own wages through legal means, but after analysis by the lawyer, due to the sudden bankruptcy of the original developer Zhao Xuezhong, according to the original contract, Zhao Xuezhong's company was responsible for all losses, but the problem was that Zhao Xuezhong Even when Zhao Xuezhong went to the construction site a few days ago because he couldn't pay, he was besieged by several decoration workers and almost got into a fight.And the leader who surrounded the workers was Li Dawei.Li Dawei is an old worker in a decoration company. He is straightforward but has a hot temper. When he learned that he could not get his due reward for months of hard work and that the instigator was Zhao Xuezhong, Li Dawei once said angrily, "Don't let me meet you two days later." This son of a bitch, I can’t say I’m going to kill him.” All this has been confirmed by many workers.On the day of the incident, the co-workers who lived with Li Dawei confirmed that Li Dawei had a stomachache that day and went to the toilet early in the morning. It was almost noon before returning to the construction site.However, no one knows exactly where Li Dawei went during this time. "Zhao team, after a detailed investigation, Li Dawei is an old employee of the decoration company. He does a good job. Like him, he can earn tens of thousands of yuan a month. The work I did was basically for nothing, and I don’t think I could get any money. It just so happened that Li Dawei’s mother got sick and was waiting to use the money. In mid-August, the hospital issued a critical illness notice. It is said that his mother had died of illness, and he did not have an alibi at the time of the incident, and it can even be said that he had a motive for the murder." Lao Xu reported to Zhao Leihui looking at the investigation materials. "What did Li Dawei say?" "Look at the interrogation record."

"What is your name?"

"Li Dawei."

"Age, occupation."

"43 years old, decoration worker."

"From 8:20 a.m. to 5:12 noon on August [-]th, where were you and what did you do? Can anyone prove it?"

"On August 8th, I had a stomachache. I had a stomachache all morning. I couldn't take it anymore, so I went to see a doctor in an outside clinic. I called my colleague Lao Li, and he knew the doctor later."

"What time did you go to the clinic?"

"I can't remember. Anyway, my colleagues and I didn't go to work at that time. It was before 8 o'clock, and when I went to the clinic, it was probably not past 8 o'clock after 9 o'clock."

"Where is the clinic, what is its name, and what is the name of the doctor who saw you?"

"The clinic is a few kilometers south of our construction site. It's called Renhe Clinic. I don't know the doctor. He is a relatively young child, probably in his thirties."

"What's wrong with you and Zhao Xuezhong?"

"Actually, there's nothing to celebrate the festival, it's just that this place suddenly went bankrupt, and I didn't make any money."

"You led people to surround Zhao Xuezhong, why?"

"Don't you just want to ask for money? I have been doing this for a long time, and I don't have any money for the ball. Don't be in a hurry."

"You once threatened to kill Zhao Xuezhong, and it was also because of money?"

"It's for the money. My mother just happened to be sick in the house. It takes a lot of money to see a doctor in the hospital. After knowing this, I was even more anxious. My mother waited for my money to save her life, but she couldn't get it. On the 18th, I My mother died of illness in the hospital, and I was so angry that I said something harsh, but I never really thought about killing Zhao Xuezhong at all."

"Then did you kill Zhao Xuezhong?"

"How is it possible? I'm just talking ruthlessly. It's impossible to really kill him. Comrade police, you must investigate clearly and return my innocence."

Zhao Lei flipped through the interrogation records and thought for a while. "Team Zhao, the colleagues who went to the clinic to investigate brought back information. They did not find any records of Li Dawei's visit to the Renhe Clinic on August 8. The clinic currently has only one doctor, surnamed Lu, who is 20 years old. Dr. Lu said that there are many patients who see the doctor every day. , I have no impression of Li Dawei." A police officer came over and said. "Interrogate Li Dawei, I want to ask something." Zhao Lei ordered.

In the interrogation room, Zhao Lei said, "Li Dawei, according to our colleagues' investigation, you said that you went to the clinic for medical treatment on August 8, but the clinic didn't record it, and the doctor didn't have a deep impression of you. Do you know what this means?"

Li Dawei: "Comrade policeman, what do you mean, there is no one who can prove that I really went to the clinic to see a doctor that day, right?"

Zhao Lei: "At present, it looks like this. The area between your construction site and the clinic is a bit out of the way. The monitoring on the road is either broken or the angle cannot be photographed. We have no evidence from the monitoring that you went to see a doctor. Please recall carefully, You got up early that day, did you encounter any strange or abnormal things, and I informed my colleagues to bring the doctor over to confront you."

Li Dawei: "Comrade policeman, in fact, when I went to the clinic that day, the doctor saw my condition, gave me an injection and prescribed some medicine, told me to go back to take it, and asked me if I wanted a receipt. , He said that he would charge an extra 20 yuan for the bill, so I said forget it, and I can’t get reimbursed (reimbursed) for any bill. I didn’t know the dead person until I got back to the construction site. Actually, when I went to the toilet that morning, It seems that Boss Zhao is crying and talking to himself."

Zhao Lei: "What time was it, where did you hear it, did you seem to hear it, or did you hear it for sure? Why didn't you explain it when you asked me last time?"

Li Dawei: "Comrade police, when your colleagues brought me to the police station, I was frightened. I forgot about some things. In fact, I'm not sure. I squatted on the head of the toilet on the first floor. That is, at 6 o'clock, I heard someone crying outside and talking to myself, and then a few minutes later, I finished urinating and came out of the toilet, and saw a figure from the back going up the second floor, I didn't see the front, look Clothes and body shape, it seems to be Boss Zhao, so I said it seems to be. At that time, I had a severe stomachache (serious), and I didn’t bother to care about him. Before I walked back to the dormitory, I ran to shit again. I struggled a few times, but I didn’t meet anyone else, and I couldn’t bear it later, so I went to the clinic, and then I called Lao Li and asked him to help me ask for leave.”

Zhao Lei: "When did your mother die?"

Li Dawei: "August 8."

Zhao Lei: "Then why didn't you go back to your hometown to see Ling Tang die?"

Li Dawei: "I really don't have any money. After working for a long time, I can't get any money. My mother borrowed some money when she was sick. Now she has no money. The family calls my elder brother and mother-in-law to attend the funeral."

Zhao Lei: "Recall carefully, because the current evidence is against you. Once you think of something, tell me immediately. Don't worry, the police will not wrong a good person. If you are innocent, they will definitely return your innocence."

At this time, the police had brought Dr. Lu from Renhe Clinic over.Zhao Lei asked the two to identify each other. After seeing Dr. Lu, Li Dawei said, "Doctor, you were the one who saw me that day. I had a stomachache. You gave me an injection and prescribed some medicine. Do you remember?" The doctor stared at Li Dawei for a long time before slowly saying, "Oh, it's you, I remembered, you did come to the doctor that morning, but after the examination, there was nothing serious, I can't remember the exact time, you This Sichuan accent left an impression on me." By the way, there was nothing wrong with the medicine prescribed by Dr. Lu that day, so he sent Dr. Lu away.

When he came out of the interrogation room, Zhao Lei told the police officers the information he had just obtained, and went to the police academy with the relevant information to find his old friend Lin Chong.Lin Chong works as a teacher in the police academy. He is the youngest associate professor at the age of 39. He is very insightful in criminal investigation, active in thinking, and rigorous in logic. Chong can often give Zhao Lei important help.

"Brother, what do you think?" Zhao Lei told Lin Chong all the relevant information, and asked Lin Chong to help analyze the case.

"Brother Zhao, according to you, Li Dawei has no criminal record, he is honest and upright, but he is a little impulsive. If something happens in his family, if he kills impulsively, it doesn't fit the circumstances of this case. Finding a way out is not something an ordinary criminal can do. If Li Dawei has been planning for a long time and used his status as a decoration worker to practice how to build a secret room and how to escape from the scene, and then according to Zhao Xuezhong's activities, he would lie in ambush on the construction site and wait for the opportunity It makes sense to take the initiative to kill, but it also shows that Li Dawei is a person who is meticulous, good at disguising, and has a considerable anti-reconnaissance awareness. According to the evidence collected so far, Li Dawei has enough time to commit crimes. If I were Li Dawei, I would first Long-term observation, grasp the time pattern of Zhao Xuezhong's appearance at the construction site every morning, and then make a murder plan. In a certain period of time when no one is paying attention, I will prepare ice cubes in advance, try to create a secret room in a certain room and escape, and then return to the scene to observe Effect. In this way, I will choose the room that I am responsible for the decoration of the experimental room, and then commit crimes after more than two successful experiments. On August 8, I will get up very early, pretend to have a stomachache, and wait until Zhao Xuezhong arrives at the construction site to wait for the opportunity Subdue him, force him to take a large amount of sleeping pills, wait for the sleeping pills to take effect, carry him to the room where the crime occurred, and then cut his right wrist artery. Under the stimulation of a large amount of sleeping pills and rapid blood loss, Zhao Xuezhong will soon become comatose and die In this way, he will not have much struggle. During the process of Zhao Xuezhong’s quiet death, I have enough time to clean up the scene, clean up all the traces left by me, and forge the suicide scene in the secret room. By the way, I will use Zhao Xuezhong’s mobile phone to give to his lover I sent it to WeChat, because I didn’t know that Zhao’s lover’s mobile phone didn’t have a WeChat function, so it left an obvious flaw. But in this way, there is still a very important doubt, why did I choose glass fragments instead of a sharper wallpaper knife, And as a decoration worker, for me, the wallpaper knife is very handy. What's more, I naturally hope that the police will not find out that I committed the crime. There are no suspects to investigate, and leaving this flaw is like telling the police that Zhao has a tendency to masochistic, and he wants to stab open his wrist artery with glass shards when he commits suicide? Thinking about it like this, it is different from the previous thoughtful judgment of Li Dawei. A murderer should not contradict himself like this when committing a crime. To sum up, my inference is that Li Dawei is not the murderer, but someone else is the murderer." After careful consideration, Lin Chong proposed to Zhao Lei that he View.

Zhao Lei nodded, "Your analysis makes sense. If Li Dawei is the murderer, cutting Zhao Xuezhong's wrist artery with glass balls really doesn't make sense. This clearly tells the police that Zhao Xuezhong did not commit suicide. In addition, my intuition is that Zhao Xuezhong's His wife, Lin Xiaofeng, was too calm about Zhao's death. It stands to reason that she did not receive Zhao Xuezhong's WeChat. When the police informed her of Zhao Xuezhong's death and preliminarily determined that it was a secret room murder, she should have been very shocked. According to her, Zhao Xuezhong has a good temper, treats people very well, and has no grudges with others. It is very abnormal for this kind of person to be murdered, but I think Lin Xiaofeng gives people the feeling that it is a matter of course, as if he knew that Zhao Xuezhong would be murdered. How about this, I'll go back to the police station first, and check Li Dawei again, if it is confirmed that Li Dawei is not the murderer, it seems that I have to find a breakthrough from Lin Xiaofeng."