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

Lv Guangjun, captain of the Hongzhong District Criminal Investigation Brigade, personally led the team to search Qian Dakang's home.

If Qian Dakang is the murderer in this case, then there may be clues at the crime scene, repair shop, and home. The possibility of hiding the crime tools directly at home cannot be ruled out.

The community is near the repair shop. The three-bedroom and two-living house is considered a suburb far away from the city center, and the housing prices are not high.

As the police officers entered each bedroom to search, Lu Guangjun stepped into the kitchen.

After a quick glance, his eyes fell on a set of knives, placed next to the sink.

Realizing something was wrong, Lu Guangjun approached.

There is an empty space on the wooden knife holder, and one is missing.

Kitchen knife sets generally include kitchen knives, bone chopping knives, meat cleavers, etc. Lu Guangjun put on his gloves and took out all the knives, then took photos and searched for the same style online.

"The missing one looks like a fruit knife?" Lu Guangjun made a preliminary judgment.

This set of knives comes from a brand of kitchenware, and it's still new. It's obvious that I just bought it recently, so it's easy to check.

After comparing one by one, Lu Guangjun determined that the missing knife was a fruit knife. He immediately suspected that it might be the murder weapon, and then called the task force headquarters.

After receiving the call, Lu Zhengkai decisively issued an order, asking people to go to the market after dawn to buy the same type of knives. They must be exactly the same. If they are not available in offline physical stores, go to the e-commerce self-operated warehouse to buy them. You must buy them in the morning.

By comparing the missing knife with the wound of the deceased, as long as they match, the suspects of Qian Dakang and his son can be confirmed.

"Qian Dakang's house must be searched carefully." Lu Zhengkai said to Lu Guangjun on the phone.

Lu Guangjun: "Understood."

Municipal Bureau.

When Lu Zhengkai put down his cell phone, the police officer responsible for inspecting Ji Jingfu's vehicle came to report the situation.

"Lu Zhi, Team Chen, no problem was found." the police officer said.

Ji Jingfu's vehicle was repaired twice. The first time was due to damaged spark plugs, and the second time was due to tire pressure loss. These are common minor problems, but the vehicle had obviously just been maintained.

Lu Zhengkai: "Are there no traces of man-made damage?"

The police officer said: "No."

Lu Zhengkai waved the police officers to leave, and then discussed with Chen Yi the suspicions of Qian Dakang and his son. After finding out that there was an unaccounted fruit knife in Qian Dakang's house, the problem between the two of them was already very big.

If nothing else, this murder case should be related to them.

Is it Qian Dakang or Qian Yu?

It's possible.

"It's hard to say the motive of the crime, because what to order? So far, no connection between the victim and Qian Dakang has been found." Lu Zhengkai said.

Chen Yi is trying to connect all the clues, but feels that there is a key point missing. As long as this key point comes out, everything will be clear.

At present, Qian Dakang and Qian Yu each account for 50% of the suspicion, and new clues are needed to change the data.

"Wait a little longer." Chen Yidao, "Squint for a while first."

The search continues.

Repair shop.

The police dogs have already traveled one kilometer away. They are well-trained and can smell the residue of blood diluted hundreds of millions of times. As long as there is an abnormal smell underground, they will not miss it, but they have not found it yet.

Shi Xin also took people to the abandoned hospital project building. There was a lot of decoration rubbish discarded everywhere. Maybe what he wanted to find was hidden in some inconspicuous garbage dump.

"What a shame, what a waste of money."

Shi Xin took a look at the building complex that was beginning to take shape. If this future was abandoned, I don’t know how much money would have been wasted.

"Look carefully! Be careful! Try to use tools!" He shouted. There were too many steel and concrete in front of him, and his bare hands were easily injured.

Police officers: "Yes!"

Time passed little by little, and it was four o'clock in the morning.

When the investigation team on the new side returned without success, nothing suspected of being a crime tool was found in the entire wilderness. If it was further away, more police would be needed. After consulting the headquarters, Lu Zhengkai said that he should return first.

The investigation cannot be rushed forward mindlessly. It is unrealistic to dispatch hundreds of additional police officers to search large areas of wilderness and mountains just because of suspicion, unless there are detailed clues.

Lu Guangjun also made no new discoveries at Qian Dakang's home. The rooms of Qian Dakang and Qian Yu were searched and everything was normal.

Lu Zhengkai called Zhuo Yun to inquire about the progress of the surveillance investigation.

Zhuo Yun: "Lu Zhi, it's not easy to handle. To the south from the national highway is a large area of ​​villages and abandoned areas waiting for demolition. There are many small roads that are like a grid. If you are familiar with the roads, Qian Dakang can completely avoid it. All monitoring points.

I checked everything I could with private surveillance, and I haven't found Qian Dakang passing by before or after the incident. For the rest, it's hard to knock on the door at such a late hour, so I can only wait for dawn.

The trash cans and garbage piles on the roadside were turned over and everything was normal. "

Lu Zhengkai issued a new order: "Thank you for your hard work. Please stop for a moment and go to the convenience store across from the repair shop. The owner is Zhang Menhai. He is drunk and has fallen asleep. Wait until he wakes up. You guys are also fighting in the car." Take a nap and rest.

After waking up, ask him what he talked about when he and Qian Dakang were drinking last night, and also ask about the past. "

Zhuo Yun: "Understood, I'll be there right away."

At five o'clock in the morning, Qian Dakang opened his eyes in the city bureau lounge. The police officer in charge of surveillance immediately reported Lu Zhengkai after seeing it.

Therefore, Qian Dakang, who was thirsty and had not yet completely sobered up, was dragged directly to the interrogation room.

Click!

The task force was not polite to him. The handcuffs directly stuck his wrists and made him unable to move on the chair in the interrogation room to prevent accidents during the interrogation process.

After all, he is a suspect in the murder case. The murderer in this case is an extremely dangerous person. If he loses his temper, he can do anything.

Qian Dakang felt like he was in a dream, and his face was confused: "What...what are you doing? Where are you?!"

He has a big schedule, and everyone who is expected to come for this interrogation is here, including Chen Yi and Zhou Yebin.

Lu Zhengkai, captain of the criminal investigation detachment of the Yangcheng City Bureau and leader of the task force, personally presided over the trial.

"What's your name?" Lu Zhengkai stared at him and asked.

Qian Dakang: "Qian Dakang."

Lu Zhengkai: "Do you know why I arrested you?"

Qian Dakang looked at the interrogation room full of people. Everyone looked at him as if they were prey. This situation made him swallow his saliva: "No... I don't know."

"I don't know?" Lu Zhengkai snorted, "Think about it again. Did Ji Jingfu remember the afternoon before yesterday in Chengzhong Village, Xintou Town?"

Qian Dakang shook his head: "No...Comrade police, what's going on?"

"You're shameless, aren't you!" Lu Zhengkai slammed the table and said angrily, "Why did the repair shop's surveillance system break down?"

Qian Dakang: "How did I know that I was bad?"

Lu Zhengkai pointed at him: "You said you are bad, right? What should I do if you don't?"

Qian Dakang calmly said: "It's just me who is bad!"

Seeing this, Lu Zhengkai took out several hard drive photos and placed them on the table so that Qian Dakang could see them when he stretched his head.

"The hard drive is properly inserted into the computer host. If you say the internal parts are broken, I believe it, but what is the situation? Are you blind, or do you think the police are stupid? It's completely man-made damage!"

"Tell me! Why did you destroy the surveillance hard drive!"

Qian Dakang lowered his head slightly, thought for a moment, and said, "Maybe someone else broke it after I threw it away, right?"

Lu Zhengkai almost laughed angrily: "Come with me, right? Huh? You didn't throw away the whole computer, but the hard drive?"

Qian Dakang asked: "What's the matter? I like throwing."

This man's psychological quality is relatively stable and he will not be frightened by the police's few words. However, precisely because of his attitude towards the interrogation, the suspicion has increased again, almost reaching 100%. Even if he is not the murderer, he must be an insider.

The direction is okay.

Since there is no problem with the direction, the case will be easier to handle. Just hold on to this thread and stop the peripheral visits temporarily to focus on Qian Dakang.

Lu Zhengkai once again took out other photos, which were of the knives taken by Lu Guangjun in Qian Dakang.

"One fruit knife is missing. Where is the knife?"

Qian Dakang looked at it and replied: "It's lost. It has been lost for a week. I can't find it no matter how hard I look for it."

Lu Zhengkai: "Qian Dakang, I advise you to be honest. It is absolutely impossible to lose things like kitchen knives."

It is possible that it cannot be found for the time being, but Lu Guangjun has already searched Qian Dakang's home and did not find the fruit knife.

In other words, the fruit knife was taken out of the house.

In a normal family, who would take the kitchen knife out of the house? It's totally illogical. Qian Dakang wouldn't even tell a lie. It would be better to say that he accidentally dropped it after taking it out for use, which would be more credible.

Qian Dakang was helpless: "Comrade police, what you said is a bit absolute. Then it is lost. What can I do?"

Interrogation without evidence is very tiring, both for the suspect and for the police. It depends on both sides who can outlast the other.

Chen Yi listened for a while, lost interest, and quickly left the interrogation room.

The interrogation continued until dawn, and Qian Dakang kept the same rhetoric from beginning to end:

At the time of the incident, he was in the repair shop.

The fruit knife, I don’t know where it went.

Ji Jingfu, I don’t know him.

During the period, the investigation team responsible for investigating Qian Yu's grandma's house returned. At this moment, Lu Zhengkai was still interrogating Qian Dakang, so the investigation team reported to Chen Yi alone.

"Team Chen, it's very clean." This time Lu Yongqiang went over in person and showed Chen Yi the photos of the room, "Especially the windows, they are a bit unusually clean. They should have been cleaned carefully. I asked the old lady, no. She cleaned it."

Chen Yi looked through the photos one by one and said, "If it's not the old lady who cleans it, it's Qian Yu who cleans it. This college student... is quite diligent, right?"

Lu Yongqiang heard Chen Yi saying something sarcastic: "Is he trying to clean up the traces of climbing through the window? At the time of the crime, he climbed through the window and left grandma's house, and then came back after committing the crime? This bastard has a bit of anti-investigation consciousness."

Chen Yi put down the photo: "There were no traces left at the crime scene. The murderer must have wrapped himself very tightly. Where would he hide these things, including the murder weapon?"

Lu Yongqiang: "Anyway, there isn't one near Grandma Qian Yu's house."

Chen Yi: "It's neither this nor that. Could it be that we're really at the garbage dump?"

Lu Yongqiang hesitated: "Team Chen, do you think it was Qian Dakang or Qian Yu who did it?"

Chen Yi turned around: "What do you think?"

Lu Yongqiang smiled awkwardly: "I...I can't say. Anyway, both father and son are quite weird. I just can't figure out the motive. Why do they do this? They don't even spare the child. It's too cruel."

Chen Yi: "Reality is often so outrageous. When will they come back?"

Lu Yongqiang: "I haven't seen it yet."

Chen Yi: "Well, Brother Qiang, you go to the hospital where Qian Yu was treated, find the doctor who operated on Qian Yu, get the completed rescue records, hospitalization records and operation records, and find out how Qian Yu was injured that year. What’s going on, what’s the main injury?”

Lu Yongqiang: "I'll go right away."

After Lu Yongqiang left, Chen Yi closed his eyes and rested.

On the other side, Zhang Menhai sobered up.

Zhuo Yun saw him.

"Why did you come to him for a drink? He asked me to go." Facing the city bureau's criminal policeman's visit, Zhang Menhai was puzzled and answered truthfully, "It was Lao Qian who called me and asked me to drink. I didn't think much about it. We usually go there Let’s drink together... Comrade policeman, it has nothing to do with me if he does something illegal or disciplinary, I don’t know anything.”

Zhang Menhai has a strong desire to survive, and even the criminal police from the city bureau are here. He guesses that it is definitely not a trivial matter.

Two days ago, rumors came out from Xintou Town that a big case had occurred in the village in the city. More than a dozen police cars had arrived and the cordon had been raised several levels. He thought it might be related to that case.

Zhuo Yun: "I didn't say it was related to you. Do you know Ji Jingfu?"

"Ji Jingfu?" Zhang Menhai was stunned for a moment, frowning in thought, as if the name sounded familiar.

Seeing this, Zhuo Yun asked: "Ji Jingfu, think about it carefully."

Zhang Menhai was unsure: "I have some impression, but I can't remember where I heard it."

Zhuo Yun: "Does Qian Dakang know him?"

Mentioning Qian Dakang, Zhang Menhai's memory seemed to be opened up instantly: "Oh...yes, yes, it seems...ten years ago, Lao Qian's son was admitted to the hospital, and I heard that it was Ji Jingfu who betrayed him. "

Zhuo Yun's eyes narrowed slightly: "What? Are you sure?"

Zhang Menhai opened his mouth and was frightened by Zhuo Yun who suddenly became serious. After hesitating for a while, he smiled bitterly: "No...not sure."

Zhuo Yun frowned: "Are you really not sure?"

Zhang Menhai didn't dare to make a conclusion: "I have an impression in my mind, but it's not like this. I'm really not sure."

Zhuo Yun changed his question: "Who did you listen to?"

Zhang Menhai: "I forgot, it's been so many years, how can I remember it."

Zhuo Yun: "What did you and Qian Dakang talk about last night?"

Zhang Menhai recalled: "Just... just chatting, chatting, talking about anything. Hey, I drank a lot last night. I haven't drank so much for a long time. This old man doesn't know what's going on, and he keeps talking." Pour me wine and I’ll lose all the pieces.”

Zhuo Yun didn't miss the details: "Is he happy or sad? Is there anything wrong with his state?"

Zhang Menhai: "I didn't feel it."

Zhuo Yun: "Remember carefully what you talked about, speak slowly, don't rush."

…

At ten o'clock in the morning, about forty hours had passed since the massacre, and all the investigation teams returned, waiting for the next order.

Conference room command.

"Qian Dakang has such a tough mouth and it's hard to deal with." Lu Zhengkai drank a glass of water with anger still remaining on his face, "Zhang Menhai said that Ji Jingfu betrayed Qian Dakang back then, which is completely groundless. That must be the motive, right?”

Chen Yi is repeatedly checking the inquiry records brought back by Zhuo Yun.

He found the key point. Zhang Menhai's sudden appearance was quite strange, and his confession was also very problematic.

"That's not right." Chen Yi said after putting down the documents.

Lu Zhengkai looked over: "What's wrong?"

Chen Yi: "The drinking was wrong, and the monitoring of the repair shop was damaged. Don't Lu Zhi think Qian Dakang's behavior was to clear away suspicion?"

"It doesn't look like clearing the suspicion?" Lu Zhengkai reacted for a while, his heart beating slightly: "Is it to increase the suspicion, muddy the waters, and disrupt the direction of our investigation?"