Detective: Open your eyes, I am handcuffed in the interrogation room.

Chapter 602 Arriving in Jingcheng, Talking to Chai Ziyi
Finally, it is about the direct intersection between the three victims and Wu Changchun.

Assuming that Wu Changchun is the murderer in this case, there is definitely no direct intersection, otherwise the task force would have found it out eight years ago. Now we need to focus on the indirect intersection.

Before, we had to look for answers, but now we go to verify with the answers, which is relatively easier.

The results of the verification were that no one knew the three victims, and no one had heard of the names of the three victims.

Everyone related to Wu Changchun has never even been to Jingcheng, including occasional travel, which perfectly avoids the place of Jingcheng.

When it comes to Jingcheng, everyone is unfamiliar with it.

When it comes to the three victims, I don't have the slightest impression of them.

These are consistent with the file records.

Of course, two days is still too short. If we really want to suspect Wu Changchun, we have to dig deeper.

One of the characteristics of old cases is that there is no directional evidence. If you want to make a major breakthrough, you still have to work hard on the motive of the crime.

Once we find out the motive for the crime, the rest will be easy.

The special case team left Xigui County.

I'm just leaving temporarily and may come back in a few days.

Three hours later, the special case team arrived at the Jingcheng City Bureau and met with Chai Ziyi, the detachment leader in charge of the case.

The current time is 11:30 in the morning. After discussion, everyone went to the Municipal Bureau restaurant for dinner, accompanied by the leaders of the Municipal Bureau.

Just like the Xigui County Bureau, when Chen Yi arrived, it was difficult for them to ignore him.

The identity of inspector carries a strong deterrent effect.

No one knows whether Chen Yi is here to investigate the case or has other tasks along the way.

It is always right to be careful. After many years of official career, no one can guarantee that he has not made mistakes in decision-making, not to mention that some people may not be very clean.

Chen Yi was quite polite. He accepted all requests and handled the case with ease. Nothing he said or did meant to deviate from the investigation of the murder.

While eating, he and Chai Ziyi were close to each other and they talked about the case.

Upon initial contact, Chai Ziyi seemed to be a man who got things done. He had strong professional skills and case-handling experience, and a strong aura, even overshadowing the deputy director in charge.

There are probably quite a few criminals who have fallen into his hands.

"I still have a deep impression of Wu Changchun." When talking about Wu Changchun, Chai Ziyi's memory quickly went back to many years ago, when he had just been promoted to captain of a detachment. "Three people were hanged in succession near his hotel. I don't believe that Yunshui Inn can be completely clean and has nothing to do with this case."

These words will definitely not appear in the file. The file can record reasonable inferences, but not arbitrary guesses.

It seems that Chai Ziyi has always been suspicious of Yunshui Inn.

Chen Yi: "When the three murders were reported, Wu Changchun was not at the scene. What does Chai Zhi think about this?"

Hearing this, Chai Ziyi sneered on his slightly dark face: "Haha, I think he came to Jingcheng to kill someone, but unfortunately there is no evidence that he has been to Jingcheng."

The two sides exchanged information and agreed that Wu Changchun of Yunshui Inn was a certain suspect in the crime. He used the Xigui County Funeral Home to cover up the crime, which added a suspenseful atmosphere to the case.

"Chen Xun, if it was Wu Changchun who did it, what do you think was his purpose in hanging the corpse at the door of the inn?" Chai Ziyi asked.

A very pointed question.

If one is capable of killing someone without leaving any trace, there is really no need to hang the body at the doorstep, causing the police to point their suspicion at the first moment, and the suspicion will never disappear until the case is closed.

There must be deep-seated reasons why smart people do such unnecessary things.

Simply put, that's why we have to play tricks on others.

Chen Yi said, "Before discussing this issue, we must first determine a prerequisite, which is whether the murderer kills randomly or has a clear motive."

Chai Ziyi said: "If the person died in Jingcheng, it's hard to say, but if it involves Shidu Town, the motive should be clear."

He has his own way of thinking and is more inclined towards vengeance.

Chen Yi nodded slightly: "Since there is a motive for killing, then Chai Zhi's question just now has an answer."

Chai Ziyi: "First there is the motive and then there is the action? It seems that if we want to figure it all out, we really have to wait until we find out the motive. Once we have the motive, the case is closed.

Now we are facing a serious problem. If the bodies were swapped, there would not be three dead in this case, right? "

Chen Yi said as he ate: "At least four, but it is not certain whether the other bodies are victims. They may have died of natural causes."

Chai Ziyi agreed: “That’s right.

Chen Xun, do you think the murderer chose this method of killing specifically? Hanging three times in a row is quite difficult. Since the drug was used to successfully make the victim lose the ability to resist, it is entirely possible to use a simpler method of killing. "

Chen Yi thought about this matter and asked back: "What does Chai Zhi think?"

Chai Ziyi said: "No matter if it is a random crime or a targeted one, serial murders usually have clear signs of the crime, and I think hanging is the label of the murderer.

Chen Xun once solved a serial murder case spanning more than ten years in Dongzhou Jiangcheng. I studied it carefully with a learning attitude. Judging from the killing method, the murderer wanted the victims to enjoy the same treatment as their relatives when they died. That's why he buried them in the ground with only their heads left every time he committed a crime, and placed a small mirror in front of them.

Sometimes, murders can be applied to other murders. I wonder if it is possible that the murderer's relatives and friends also died by hanging, and the cause of death came from the three victims, so the murderer chose to hang them to kill them. "

The other five members of the special case team sat around and listened carefully to the conversation between the two.

They realized that the criminal investigation captain in front of them was a little more powerful than they had imagined.

Except for ignoring the funeral home in Xigui County, in other aspects, at least in case analysis, he is not inferior to Chen Yi.

It is rare to find a mediocre person who can reach the position of detachment leader.

The leaders present did not interrupt. They were quite satisfied with Chai Ziyi's performance.

Chen Yi said, "Chai Zhi's idea coincides with mine. The murderer killed three victims by hanging. There must be a special reason. As for whether there are relatives and friends who died in the same way, it is hard to say.

After all, Chai Zhi should have checked the interpersonal relationships very clearly, and if there is an abnormal death, it cannot be concealed.

Just from the inference level, I agree with Chai Zhi's point of view. There is a high probability that the murderer had close relatives who died under abnormal conditions. This is also one of the criminal profiles of the murderer.

But in this case, Wu Changchun does not qualify."

Wu Changchun's basic information has been thoroughly checked. Apart from what is not recorded in the archives, he indeed has only one son.

He was willing to kill three people in revenge. From a human nature perspective, he could only be a child.

Parents' love for their children is unconditional.

Chai Ziyi nodded: "Chen Xun is right. It is unlikely that Wu Changchun has any connection with the three victims in Jingcheng, including an indirect connection."

At this point, the topic has reached a dead end.

If this case could have made a major breakthrough through discussion, it wouldn't have remained unsolved for so many years.

We still have to take it slow, and there will always be a time to clear the fog. Chen Yi finished eating and wiped his mouth with a napkin.

Chai Ziyi raised morale: "With Chen Xun in charge of the investigation of this case, we have confidence again. The Jingcheng Criminal Investigation Detachment will absolutely obey all orders from Chen Xun."

This is not a compliment, you can see that he is sincere.

Chen Yi said nothing.

If they don't obey the order, he will make a phone call to Dicheng, and the Jingcheng City Bureau will be in trouble. No one will be so stupid as to go against the wind.

After lunch, the case officers gathered in the conference room. The leaders were driven away and there was no point in them staying.

Jingcheng is the focus of investigation.

To be precise, Jingcheng Economic Development Zone is the focus of the investigation, and the scope has been narrowed a lot.

When Chai Ziyi asked his subordinates to prepare the projector materials, the two sides started chatting again, discussing the issue that the three victims all lived in the Economic Development Zone.

Is it a coincidence or a necessity?

Hard to say.

Jingcheng has three districts, which are not far from each other and lack independence. The most prosperous district is not the Economic and Technological Development Zone, but the three victims are all from the Economic and Technological Development Zone. This matter is worth thinking about.

The most likely possibility is that the murderer is also from the Economic Development Zone.

Living in the Economic and Technological Development Zone, it is easier to develop social relationships with each other. The probability of developing social relationships in other districts or even other cities is relatively low, and it is more of a coincidence.

Let's put Wu Changchun aside for now. He is just a suspect, not necessarily the murderer. We need to tackle this case from multiple perspectives.

Chen Yi asked something: "Chai Zhi, the first victim was a doctor in the hospital. Didn't you find anything when you investigated the patient?"

Patients are the main social relationship of doctors.

Since no other connections could be found, the criminal police's first reaction was naturally the patient.

Chai Ziyi shook his head: "Xiang Shu has been officially practicing medicine for six years. I checked all his patients in the past six years and called every patient one by one. They are all living normal lives and there is no suspicious situation.

Chen Xun, you mean a medical accident or the doctor's own mistake? I have checked this line, it is not connected, and no one has died. "

Chen Yi knew.

Just asking to confirm again.

The file was written in great detail, saying that Xiang Shu saw an average of 30 patients a day, which means he saw about 65,000 patients in six years. With one call per minute, it took a thousand hours.

Even if ten people play together, it will take a hundred hours.

This is how the investigation of a major homicide case works. Investigators often face repetitive tasks that take a long time and test their patience.

Chai Ziyi continued, "The same is true for the deceased Zhang Wenyang. His students have called to confirm that everything is normal. As for Qiao Rui, it is even simpler. His social relationships are limited to relatives, friends and colleagues at work. His middle school and elementary school classmates have also called to inquire about the situation.

Finally, after a computer search, no overlap was found between the three. "

This detachment leader is really capable. He has thought of everything that needs to be thought of, including overlapping the victims' relationship networks and trying to find common acquaintances.

The investigation has covered a very wide range of areas, and Chai Ziyi is very responsible, and it sounds like nothing has been missed.

As long as the police can find out, they will not let it go.

Chen Yi nodded: "I can feel the difficulty of this case. Then... after Chai Zhi failed to find any connection between the victims, is his goal still clear to the murderer?"

Chai Ziyi: "Yes, I still think the murderer has a clear target. What about Chen Xun?"

Chen Yi: “Investigate together. Even if the murderer randomly selected the target, there must be a basis.

This person was very well prepared for the crime. He did not leave any evidence or clues during the crime process and had strong anti-reconnaissance capabilities, which shows that he had a very clear mind.

A guy with a clear mind would not commit random killings in the true sense, that is exclusive to psychopaths.

He was able to avoid all surveillance and was obviously very familiar with the Economic Development Zone. Was he a long-term resident there or did he deliberately investigate? "

Chai Ziyi: "If we investigate, it would be difficult for a sneaky guy who often appears in the victim's activity area to evade our detection.

I think long term residence.”

Chen Yi felt that Chai Ziyi was very much to his liking, and that he could think of everything together, so there was no need to waste words to explain: "Then let's take a bigger step, and ignore the situation of Wu Changchun in Shidu Town, and follow the direction of the locals.

A local person had an indirect connection with the three victims, and the connection might be through close relatives, let's assume they were their children.

Well, it is clear under what circumstances this person could know a doctor, a dance teacher, and a tobacco worker at the same time. "

As we talked about this, the big screen lit up.

Three sets of information appeared side by side on the big screen, from left to right they were doctor Xiang Shu, teacher Zhang Wenyang, and tobacco worker Qiao Rui.

These three people did not know each other.

As to whether there are any overlapping points in the relationship network of the three people, it has been checked long ago. Yes, there are, but they are not relevant to this case and have been confirmed to be ruled out after an in-depth investigation.

The Economic Development Zone is not big, so it is normal for the relationship networks of three long-term locals to overlap. There are friends of friends, friends of relatives, relatives of friends, relatives of relatives... If you put it this way, everyone's relationship network is huge.

When the victim's information appeared, the conference room fell silent, even Chai Ziyi stopped talking.

Chai Ziyi was personally responsible for the investigation of this case, and had been investigating it on and off for several years. If he had any new ideas, he would not wait until now and would have done it long ago.

Chen Yi's assumption just now was similar to his, but he really couldn't guess how he had any connection with the three victims that even the police couldn't find.

Unless, it's similar to the Jiangcheng case.

This is what he meant when he mentioned the Jiangcheng case before.

Outsiders don't know, surveillance cameras can't capture it, there are no electronic or paper documents, and the parties involved deliberately concealed it. How can we find out? The police are not gods.

Chen Yi glanced at the information on the screen, took out a cigarette and handed it to Chai Ziyi first, then lit it himself and said, "Let's hold this meeting for a longer time so that we can analyze it carefully.

Everything that can be checked has been checked. Now we need to rely on our brains, our imagination, and perhaps a little creativity.

Chai Zhi, suppose there is such a person, regardless of whether he is the murderer or the murderer's close relative, codenamed A.

The first person to die was the doctor Xiang Shu, so how did A know Xiang Shu and not be the focus of the investigation? "

The key scope of the investigation refers to private acquaintances, including relatives, friends, colleagues, etc., which have been thoroughly investigated and the call records and chat records have been read through.

What we are talking about now is an unconventional relationship.

Chai Ziyi said without hesitation: "It must be the patient."

Chen Yi nodded: "Okay, patient, then the murderer or someone related to the murderer is among those 65,000 people."

(End of this chapter)