National Forensic Doctor

Jiang Yuan gathered his men and took Cui Qishan and others with him to Jianmenyuan for a secret investigation.

Zhengguang Bureau has no shortage of criminal police talents. Strictly speaking, Cui Qishan cannot be considered a talent. His shortcomings are too poor.

Jiang Yuan is mainly familiar with Cui Qishan. Moreover, Cui Qishan has the special skill of exhuming corpses. In such a headless case, any abnormality is a good thing.

Cui Qishan attaches more importance to abnormalities. Just kidding, Jiang Yuan took down a listed company to save his people - of course, in fact, there is no need for this in the matter of "helping" - but Cui Qishan had to accept this kindness.

Everyone was well prepared, and when they drove, there were more than 20 cars in the convoy.

Cui Qishan seemed to want to call all the technical detectives over.

So many cars drove over together, so it couldn't be called a secret investigation, so he deliberately divided the staff and arranged most of the vehicles to park in the public parking lot in front.

Jiang Yuan had two cars and eight people parked outside Jianmenyuan.

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Jiang Yuan brought Mu Zhiyang and Gao Yuyan, Cui Qishan brought his subordinate Li Jiang, a total of five people, and entered Jianmenyuan community without any obstacles.

Jianmenyuan is a community built fifty years ago. It used to be a unit compound. Due to institutional changes and the abolition of enterprises and institutions, the community has been completely handed over to the society. Now, it is just a small building complex with poor access control, superior geographical location, but old buildings.

"The case occurred in Building 2, the building on the right hand side of the entrance." Cui Qishan had also reviewed the case files in advance.

Jiang Yuan nodded, confirmed the address, and then observed the surroundings.

The difficulty of the Jianmenyuan case lies in its simplicity.

There are a total of four buildings in Jianmenyuan, all of which are five-story tube buildings, forming a Z shape, so that they do not block each other. Building No. 2 is at the lower right corner of the Z shape, about 10 meters away from the courtyard wall.

The victim, Zhang Xiaoming, lived on the 4th floor of Building No. 2.

The structure and personnel of the tube building itself are also very simple.

The tube building is like a row of dormitory buildings. Each house is a rectangular room with one or two small compartments inside. There is no separate bathroom and kitchen.

The tube building in Jianmenyuan belongs to the second generation of tube building. There are two bathrooms on each floor, which are relatively large. There are also two kitchens, which are relatively more spacious.

The stairs and corridors are like hanging outside the building. It is a long corridor with stairs in the middle.

It can be said that the structure of Jianmenyuan is unobstructed from the inside to the outside.

From the downstairs, you can see the corridor upstairs and the people in the building. If you stand in a better position, you can even see the people in the kitchen.

The corridor is also straight. Whether you look from the stairs or one end of the corridor, you can see clearly who is in the corridor.

Furthermore, the Jianmen Courtyard in the 1990s was a building built by the unit. Although there were some cases of house exchange, inheritance and sale, in general, the residents in the entire courtyard were all acquaintances. At least 50% of the people in the same building were familiar with each other, and more than 70% of the people on the same floor were familiar with each other.

According to the judgment of the forensic doctor at the time, the victim Zhang Xiaoming was killed at about 10 o'clock in the morning. Although this time was a relatively quiet time in the courtyard - most people went to work, there were always family members.

However, after frequently visiting everyone in the courtyard, no eyewitness was found.

This inevitably turned the direction of the investigation to the possibility of acquaintances committing the crime. Especially the residents on the fourth floor, only these residents appeared in the corridor on the fourth floor, which was the least noticeable.

If there were unfamiliar outsiders, it would be impossible not to notice.

But the result obviously did not support the judgment of the task force at the time.

Jiang Yuan and Cui Qishan walked back and forth on the 4th floor of Building 2 several times, and finally attracted the concern of an old lady.

"Which unit are you from?" The old lady looked to be in her 60s, considered young in the building.

The current personnel structure is different from that of more than 20 years ago. In the same tube-shaped building, there are fewer people living and more strangers coming and going. Because there is no independent kitchen and bathroom, the original tenants have almost moved out, and the new tenants change frequently. The grand occasion of seven-tenths of the same floor is no longer there.

Cui Qishan noticed the old lady's age and asked instead of answering: "Are you the owner of this building? Did you live here before? Or did you buy the house later?"

"Who buys the house here? They are all waiting for renovation. They said they would renovate, but they didn't. Now they are waiting for demolition." The old lady in Beijing was still willing to explain her identity as an old BJ. Then she said: "This house was divided by my father at that time. Later, my father passed away. My brothers were well-off, so they gave this house to me. Now it is a school district house for my granddaughter. I can eat there at noon, take a nap, and take her home in the evening."

"The houses here are not renovated or demolished because of that case." Cui Qishan raised a rumor.

The old lady's face changed: "I didn't think it was possible before, but now I think it's possible. Hey, what does it have to do with us? The neighborhood next door has installed elevators, but because there was a murder in our building, they said they would not install them. Let alone demolition, why wouldn't we demolish our building in such a good location..."

"So, the case hasn't been solved yet?"

"Who knows, it should not be solved."

"Did you live here when the case happened?"

"Live. Live with my parents and a few brothers. It was only after that happened that my family decided to buy a house."

"Then what kind of person do you think the murderer is?"

The old lady didn't even think about it and said, "I might just be a worker in the factory."

"Huh? Why?"

"Because Zhang Xiaoming shouted, 'Lay off and re-employ', think about it, if you were a worker in the factory, would you be willing to be laid off and re-employed? How many people wanted to stab him. Wouldn't they be stabbed in the end?"

"I remember arresting several people at that time, saying they were the ones who shouted this." Cui Qishan was recalling the file.

The old lady said: "Zhang Xiaoming was stabbed to death during working hours. The workers were all at work. How could they have time to stab him?" The old lady raised her head and asked again: "Which unit do you work for?"

"We are the police!" When Cui Qishan said this, he was smiling and serious, waiting to see the old lady's reaction.

"Are you going to take up this case again?" The old lady frowned, not as welcome as she expected.

Cui Qishan was stunned: "Is there anyone working on this case in front of you?"

"Don't you just do it every few years? I've added several people to my group." The old lady said and looked at Cui Qishan suspiciously: "Where is your ID?"

When an old lady in the capital looks at you with a scrutinizing gaze, she feels a bit stressed.

Cui Qishan couldn't help but smile bitterly, showed the old lady his ID, and then continued to ask questions.

Finally, I got tired of asking people, so I caught a few people passing by and asked them, and finally checked the group the old lady mentioned.

They were all built by members of the previous task force.

Cui Qishan gave a bitter smile and said: "I guess like us, we conduct secret investigations every few years. We don't dare to launch it in a big way, so we investigate in private first. Maybe we want to wait until the evidence is collected before reporting it to the higher authorities. Unfortunately, No evidence has been collected.”

What Cui Qishan said was serious, but his words didn't sound nice.

Jiang Yuan nodded.

Cui Qishan then sighed with emotion and said: "Most of the members of the task force who were involved in this case have retired. If we take up this case now, it mainly depends on the outcome of the interrogation. It also depends on the performance of the suspect."

Cui Qishan is talking about the normal detection process of the backlog of murder cases.

Most of the evidence in cases from more than 20 years ago has been eliminated. Therefore, such a case very much requires the conscience of the suspect to discover it, or the people around him to successfully report it.

It would be perfect if the interrogation police could get the suspect to confess directly. If this is not possible, the suspect will have to cooperate and provide some information. If this fails, it will be very difficult to accumulate such a case.

Therefore, Cui Qishan placed his hopes more on everyone who had the fingerprint found by Jiang Yuan.

Jiang Yuan shook his head slightly and said: "He may not confess. If he does, he will be a murder suspect. He probably did not kill the person."

Cui Qishan reserved his opinion on the former and only asked the latter, "How do you know it wasn't him who killed him?"

"Wang Futing, the suspect I compared, had his fingerprints left on the courtyard wall, and there was no blood on the courtyard wall. Judging from the victim's wounds and the position where he fell to the ground, the victim had If Wang Futing participated in the murder, his clothes and hands would be easily stained with blood, and the courtyard walls should not be so clean. "

"So, is it possible that Wang Futing is a completely outsider in the case?" Cui Qishan became anxious as he spoke: "Let me tell you, things can't go so smoothly!"