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

It was evening.

Chen Yi and Lu Zhengkai were having dinner in the conference room. The external investigation was still going on. If there was any new situation, they would call.

At this time, Chen Yi had the basic information of two people in front of him. He read it while eating.

One of them was Qian Dakang, and the other was Qian Dakang's son Qian Yu.

Qian Dakang had entered the police's sight, and his son Qian Yu could not be ignored. Theoretically, if one of Qian Dakang's motives for committing the crime was to avenge his son, then Qian Yu might also avenge himself.

"There is no disability, no sequelae, Qian Yu was admitted to Yangcheng University, and the perpetrators were punished by law... Captain Chen, isn't the motive of revenge a bit far-fetched? And so far, no connection has been found between Ji Jingfu and Qian Dakang."

Lu Zhengkai spoke up. This did not conform to normal logic, unless the incident of going to the hospital had an irreversible and significant impact on the father and son.

From the actual situation, Qian Yu's life is relatively smooth. As a top student of Yangcheng University, he has a promising future. Qian Dakang really has no need to give up his good life and kill Ji Jingfu's family. Once the truth comes out, it will cause a fatal blow to Qian Yu's future, not to mention that Qian Yu has not graduated yet and is in his third year of college.

Qian Yu is even less suspicious. A college student who is receiving higher education and has not entered the society should not do such a dehumanizing thing.

At present, an investigation team has gone to Yangcheng University to understand the situation and confirm Qian Yu's alibi on the day of the incident.

Chen Yi did not answer Lu Zhengkai's question and said, "Let's talk after the investigation results come out. We still have too few clues."

Qian Dakang is only the first suspect of the task force, but he is not necessarily the murderer. As the investigation deepens, there may be a second and third suspect.

At this time, He Shixin was standing in front of a pile of newly dumped garbage, searching carefully with more than a dozen police officers.

What they were looking for was a damaged hard drive.

Two hours ago, he rushed to the repair shop to ask for help to repair the surveillance, but he didn't expect that Qian Dakang had already found someone to repair it and installed a new one after Zhuoyun left.

It was like a race against time.

Why did they wait until the police came to investigate the murder case when they didn't repair it earlier? This made He Shixin suspicious.

The old surveillance in the repair shop was installed many years ago, connected to the computer, and the surveillance video was saved in the hard drive. According to Qian Dakang, the surveillance in the repair shop was completely damaged. Not only was the surveillance broken, but the hard drive was also broken.

Regarding this matter, He Shixin specifically went to ask the master who installed the new surveillance, but the other party had never seen the hard drive.

He Shixin always felt that Qian Dakang was very wrong, and he needed to see what the damaged storage hard drive looked like with his own eyes.

The hard drive was thrown into the city trash can on the side of the road, and the trash can was taken away by the garbage truck and just dumped in the garbage dump.

Looking at the mountain-like garbage pile, He Shixin moved his joints and continued to search.

...

The investigation team of Yangcheng University sent news.

Qian Yu was not at school in the afternoon and evening of the incident. He said he went back to his hometown.

Qian Dakang's hometown is Xintou Town, not far from the repair shop. His grandfather passed away and his grandmother lived there. Qian Yu had a good relationship with his grandmother and went back almost every month.

Qian Yu stayed at his grandmother's house until nine o'clock in the evening, and only left and returned to his own home after his grandmother fell asleep, and went to school the next day.

The investigation team went to Xintou Town to meet Qian Yu's grandmother. After questioning, it was confirmed that Qian Yu had come back, and the time of return was around eleven o'clock in the morning, and he did leave around nine o'clock in the evening.

"Lu Zhi, I think Qian Yu's alibi is not sufficient." The investigator was very experienced and expressed his opinion, "According to Qian Yu's grandmother, Qian Yu went back to his room to play with his mobile phone after dinner, and did not come out until around 6 o'clock in the evening for dinner. At that time, the tragedy was over.

I went to the room to see that the window in the room was a single wooden window, which could accommodate adult men in and out. There was a low wall outside the window, which was very easy to climb over.

Unfortunately, there were too many debris on the ground, and it was unclear whether there were any footprints."

Although it was just a guess, the investigation must be rigorous.

Since Qian Yu could theoretically sneak away to commit the crime, it could not be ignored, and Qian Yu's grandmother's house was not far from Ji Jingfu's home, and it was only 1,800 meters away from the urban village.

Lu Zhengkai: "Did he bring a bag when he went back to his grandmother's house?"

Investigator: "No, he came empty-handed."

Lu Zhengkai said: "Let the technical detective extract fingerprints and footprints on the windows and window sills. You walk around and look for any suspicious items and bloodstains."

Investigator: "Yes! Lu Zhi!"

The phone was hung up.

This father and son have a big problem. How could a repair shop owner and a college student not have a perfect alibi on a weekday afternoon?

Could it be such a coincidence?

"From the traces at the scene, there is only one suspect, right?" Lu Zhengkai said.

Chen Yi said: "There is no evidence to prove that there are two murderers."

...

Garbage dump.

"Captain He! Found it!"

After more than an hour of searching, a police officer picked up a black object, and after carefully identifying it, his eyes lit up and he shouted immediately.

After hearing this, everyone else stopped searching, stood up and turned around, and they all breathed a sigh of relief.

Rubbing garbage is not easy, mainly because it is too tiring to bend over for a long time.

He Xin strode over.

After taking the hard drive from the police officer, He Shixin checked the damaged position under the illumination of a strong flashlight. The damage was very serious and there was no possibility of repair.

Not to mention the technicians, even laymen can see that the hard drive was damaged by human beings.

"It's so funny, it was damaged by a screwdriver! There are also traces of pliers breaking it!"

"Everyone follow me back to the repair shop!"

After confirming that the hard drive was obviously damaged by human beings, He Shixin's face turned ugly. He felt that his IQ was insulted, and immediately led people back to the repair shop.

On the way, he called Chen Yi. After a brief exchange, the Municipal Bureau immediately applied for a search warrant and prepared to conduct a carpet search of Qian Dakang's repair shop and even Qian Dakang's home.

Lying to the task force means that Qian Dakang is already a big suspect in the crime, and he needs to be investigated in detail.

When he arrived at the repair shop, the lights were still on, but it was already off work.

He Shixin quickly walked through the construction site and entered the inner room. He found that Qian Dakang's wife was cleaning the table. The air was filled with the smell of alcohol and cigarettes.

On the table, the leftovers were scattered around. The two men were drunk and lying on the sofa.

Qian Dakang was among them.

Seeing this, He Shixin frowned: "What's going on?"

Qian Dakang's wife explained that they were old friends getting together and they drank too much without paying attention.

He Shixin glanced at Qian Dakang's friend. He was sleeping soundly with a rosy face. He smacked his lips as if he was dreaming and had no intention of waking up.

Looking at Qian Dakang again, he was sleeping even more soundly and began to snore.

"Who is this?" He Shixin asked.

Qian Dakang's wife: "Lao Zhang... Zhang Menhai, the convenience store across the street. These two have known each other for many years and often drink together.

Police comrade, why are you here again? We are doing business honestly and will not do anything illegal."

He Shixin knew that it was impossible to question Qian Dakang before he sobered up. Was he doing it on purpose?

It is not a good idea to escape police investigation by getting drunk. There will always be a time to wake up.

"How did the surveillance camera in your repair shop break?" He Shixin asked Qian Dakang's wife.

Woman: "I don't know, I don't understand."

He Shixin: "Has Qian Dakang done anything suspicious these two days? For example, he spent a long time fiddling with something in front of the computer, or he moved the surveillance camera himself."

Woman shook her head: "I didn't notice."

He Shixin: "Think carefully about whether he was in the repair shop yesterday afternoon. If you cover up, you will go to jail!"

Woman helpless: "He was there, he was really there, right under my nose, I'm not blind! You... what are you looking for?!"

He Shixin was too lazy to judge whether the woman was lying or not. After the search warrant was delivered, he immediately led the team to thoroughly investigate the entire repair shop.

Seeing more police coming, Qian Dakang's wife was a little confused and didn't dare to stop them. She stood not far away and watched timidly.

"Focus on finding bloodstains and sharp weapons!"

Many on-site inspections came this time, and Su Ying and Cheng Hanjun were there. As long as there are traces, they will definitely be found.

Municipal Bureau, conference room.

It will be early morning again soon, and more than 30 hours have passed since the crime.

After learning that Qian Dakang lied, the task force headquarters focused most of their attention on Qian Dakang and analyzed his crime process.

Tang Hongyi came, and Zhou Yebin was also there.

A major suspect was found, which is very good news.

Lu Zhengkai said: "Since Qian Dakang chose to destroy the surveillance of the repair shop, combined with his confession, it means that he left the repair shop, took the tools to commit the crime and took a shortcut into Ji Jingfu's house, and returned to the repair shop after killing four people.

Then, there is a high possibility that there is residual evidence in the repair shop. He must deal with the murder weapon, shoe covers, gloves, coats and other items."

Tang Hongyi: "If it was packed and thrown directly into the trash can, it should still be in the garbage disposal plant in the suburbs. Thirty hours, there is almost a possibility of finding it."

The longer it takes to solve the case, the fewer clues there are. This is one of the reasons. If it takes ten days or half a month, the old garbage will have been disposed of long ago, and it is impossible to find it again.

Lu Zhengkai thought for a moment and said, "Let's wait for Captain He's search results. If nothing is found, we will have to consider going over the garbage mountain, which is a big project.

Also, let's hear what Qian Dakang says after he sobers up. Maybe he can't lie and will confess directly?"

On the other side, Chen Yi leaned back in his chair and smoked a cigarette, and his voice rang out: "This guy still has the mind to drink with his friends? What's his friend's name? Zhang Menhai, right? When Zhang Menhai sobers up, we have to ask him what they talked about when they were drinking, and how much he knows about Qian Dakang."

The visit work started in Xintou Town. Qian Dakang has just entered the police's sight, so Zhang Menhai is not currently on the list of visits.

So far, Qian Dakang has done two things after the police came to his door. The first is to find someone to install a new surveillance camera and throw away the old surveillance camera storage disk, and the second is to find an old friend to drink until he is unconscious.

Although the phenomenon of speaking the truth after drinking has its limitations, from a psychological perspective, alcohol does have a certain inhibitory effect on the brain, especially on the cerebral cortex, making people's emotions and behaviors more susceptible to the influence of the subconscious, making it easier to express the true self and speak the truth.

To put it simply, alcohol can lower people's psychological defenses.

It is very strange that Qian Dakang dared to drink so much alcohol when he could face police interrogation at any time, unless he really had nothing to do with the case.

Even if he can guarantee that he won't say the wrong thing when he's drunk, it's better to be sober than drunk, right? Why take the risk?

"Maybe he was so drunk that he became cowardly?" Tang Hongyi said.

Chen Yi shook his head: "I don't think so. If he had caused this cruel murder case, he wouldn't have been so timid... It's weird. This case is getting weirder and weirder every time I investigate it. I always feel that something is not right."

Everyone fell silent.

In any case, Qian Dakang's lying behavior is a major discovery. The possibility that he is the murderer in this case is getting higher and higher. Now he needs evidence and interrogation of Qian Dakang.

Lu Zhengkai suggested: "Just take him to the city bureau and let him sober up there. Since he is drunk himself, don't blame the task force for conducting a surprise interrogation of him while he was half drunk and half awake."

With the stimulation of alcohol, the task force would naturally not let this opportunity go in vain. Anyway, it was not deliberately planted by the police.

Chen Yi agreed that Qian Dakang's lying behavior was enough for the task force to arrest him.

After the order was issued, police officers from the repair shop directly carried Qian Dakang into the police car. His rough behavior made his wife complain for a while, criticizing the police for being inhumane.

You're already so drunk, you still want to take it away? Can't we wait until we sober up before talking?

The search lasted for more than two hours. Qian Dakang's wife was so sleepy that she fell asleep on the sofa. So far, nothing has been found.

When I walked out of the back door of the new self-repair shop, outside was the yard fenced by Qian Dakang and his wife. Outside the yard was a large area of ​​undeveloped wilderness. There were mountains in the distance at the eleven o'clock direction, and a few scattered ones could be seen at the two o'clock direction on the right. Buildings, from the map, those buildings should be planned for hospitals, but there has been no movement for a long time, and may have been abandoned.

"If Qian Dakang is the murderer, is it possible that he buried the tools of the crime? There is a large wilderness out the back door, which is easy to operate." Shi Xin analyzed.

After analysis, we immediately called the city bureau. Soon more than a dozen police dogs were mobilized and fanned out from the backyard to the front.

At the same time, the investigation work in Qian Dakang's hometown was also proceeding in an orderly manner. When he learned that another investigation team was investigating Qian Yu, he found Qian Dakang's wife and woke her up from her sleep.

"Huh? Is it done?" The woman opened her sleepy eyes. I don't know if she is being arrogant or if she really doesn't know anything.

Shi Xin was straightforward: "When Ji Jingfu's family of four came to your store, was Qian Yu there?"

"Qian Yu?" Upon hearing Qian Yu's name, the woman felt sleepy and lost all energy. "Why are you asking Qian Yu again? What's wrong with him?"

Shi Xin: "Nothing, please answer the question, this is for your own good."

The woman thought about it seriously and replied: "I can't remember clearly. There are so many customers every day who have long forgotten."

Shi Xin: "Does Qian Yu come to the repair shop often?"

Woman: "I come here whenever I get home. He comes back almost five or six times a month. Yangcheng University is not far away. It's just a bus ride away."

Ji Xin didn't ask any more questions. The woman's reaction was natural and she didn't find any problems for the time being.

Municipal Bureau.

Qian Dakang had already arrived, and he was indeed very drunk. The detachment arranged for him to be in the lounge, and a police officer was on duty to keep an eye on him.

As long as the other party wakes up, he will immediately face interrogation.

Thanks to 3144 for the tip.