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

Chapter 642 Qian Yu Confessed
Municipal Bureau.

meeting room.

Everyone who could help went to help, and only Chen Yi, Lu Zhengkai and Zhou Yebin were left in the meeting room.

All they have to do is wait.

Zhou Yebin paced back and forth in the room, standing in front of the window for a while, and then returning to the table. His anticipation for the result made him seem a little anxious.

The same thing happened to Lu Zhengkai. After a long silence, he picked up the cigarette box, took out a cigarette, handed it to Chen Yi, and said, "Is there really blood residue in that dent in the drawer?"

If bloodstains can be extracted and the owner of the bloodstains is the victim, then it will be irrefutable evidence, enough to pry open Qian Yu's mouth.

Chen Yi took the cigarette: "I can only say that it's possible."

When he just returned to the Municipal Bureau, he went to the technical investigation department to check it out. Through preliminary observation with a high-power magnifying glass, he could see that there was a dark red color in the concave part. If nothing unexpected happened, it was completely coagulated blood.

The premise is that the dent was caused by the murder weapon.

These are all speculations at the moment. The facts need to be verified by the laboratory, which shouldn't take too long.

The samples collected from Qian Dakang's bathroom were also sent to the laboratory, and an attempt was made to extract DNA from each sample. If a match with the victim is found, it can be used as part of the chain of evidence.

But compared to the dent, the possibility of gaining anything from this incident is not great. After all, he did not take off all his clothes to commit the crime. The detection is only to prevent unexpected situations, such as the blood splashed on his body during the crime accidentally seeping into the inside of his clothes and remaining on the surface of the body.

the other side.

He Shixin quickly locked onto Qian Dakang's driving trajectory through surveillance, and found that he had lost sight of Qian Dakang when he was almost at the junction of Hongzhong District and Xintou Town.

The surveillance footage showed that Qian Dakang turned right into a small road.

He was originally from Xintou Town, and the repair shop was not far from Xintou Town. It could be said that he had never left the area within a five-kilometer radius in his entire life, so he must be very familiar with the surrounding environment.

When you go out, you should have already thought about where to dispose of the murder weapon.

After confirming that the surveillance camera could no longer capture Qian Dakang's car, we fast-forwarded the video to get the time when the other party returned. Forty minutes had passed.

Now, we need to judge whether Qian Dakang threw the things away or buried them.

"According to normal people's logic, of course it is safest to bury it. If you just throw it away somewhere, it will be picked up by passers-by sooner or later."

He Shixin restored the conditions of the path based on the satellite map and calculated the speed of the vehicle. There was a huge difference between burying small objects and burying a body, so it wouldn't take long. He just needed to find a relatively safe location, dig a hole, and bury some soil. It would probably take about... twenty minutes to finish.

In other words, Qian Dakang's car drove on the small road for about twenty minutes.

After drawing a range based on the speed of the vehicles, He Shixin immediately ordered all investigators to set out and mobilize all the police dogs that could be mobilized to conduct a carpet search of the ground in the area.

"Don't have any blind spots! This is very important evidence! Do you understand?!" At the gate of the Municipal Bureau, He Shixin made the final mobilization.

Police officers: “Yes!”

The vehicles started, the police lights flashed, and more than a dozen police cars quickly rushed to Xintou Town.

It is now evening, and more than fifty hours have passed since the murder of a family. The task force has still acted quickly and has now identified Qian Yu as the suspect, and has set the time to solve the case to within seventy-two hours.

To some extent, this also depends on Qian Dakang's clever operation.

If he had not destroyed the repair shop's surveillance, the task force would not have suspected Qian Yu so quickly. The visit had just begun at that time, and even Chen Yi could not have suspected an ordinary repair shop on the national highway for no reason, even though Ji Jingfu had been there three times in a month.

Qian Dakang is not the murderer, and nothing can be found out even if there are doubts. Therefore, the task force needs to spend a long time to find Qian Yu. However, Qian Dakang greatly shortened this time, and his cleverness backfired.

Many criminal suspects are like this. In order to escape punishment, they like to play cat and mouse with the police, not realizing that the more they do, the more mistakes they make.

The police are not afraid of disruptive clues, but they are afraid of having no clues at all.

Xintou Town.

Land where crops are grown.

The moonlight poured down on the empty fields, adding an unusual touch to the methodical search operation. Dozens of police dogs, led by their respective trainers, began an intensive search of the area ahead, starting from the periphery.

There are fewer German Shepherds and more Springer Spaniels.

Springer Spaniels have a highly sensitive sense of smell and are often the first choice in search work. They are widely used in bloodstain searches, drug searches, explosive searches, search and rescue, and other fields. They can often be seen in large-scale security inspections across the country.

Time passed minute by minute, the encirclement slowly narrowed, and a Springer Spaniel suddenly stopped, sniffed the air rapidly, and then barked.

"Captain He!"

The abnormal behavior made the trainer highly alert, and he immediately called He Shixin.

When the new group quickly gathered around him, they said only one word: "Dig!"

The Springer Spaniel seemed to understand and immediately used its claws to dig up the surface soil, but the new order was not given to it.

The trainer pulled his partner away, and three police officers stepped forward, picked up tools and carefully began to dig the soil.

The police officer felt it as soon as he shoveled the first ball. The resistance from his palm was not great. This was new soil, and it was very likely the place where Qian Dakang buried something.

As the digging deepened, a black plastic bag appeared in the police officers' field of vision.

The excavation work stopped immediately, and several police officers squatted on the ground and started digging with their hands, and finally lifted out the entire black plastic bag.

The plastic bag was damaged by the sharp blade. The tip of the dagger could be seen piercing through the bag, revealing a color that excited everyone.

Bloodstains!
Seeing this scene, He Shixin breathed a sigh of relief. The case finally made significant progress.

"Take it back, be careful, and hand it over directly to the technical detective."

There are currently no conditions for inspection, and it is very likely that Qian Dakang’s fingerprints are left on the plastic bag, so it needs to be sent to the Municipal Bureau for further processing.

Municipal Bureau.

After receiving the news, Chen Yi and the other two immediately left the meeting room. Under the gaze of everyone, the gloved technical detective officer slowly opened the black plastic bag in front of him, and what came into view was a set of clothes and a knife.

Continue to search, there are shoe covers, gloves, and even masks.

Just as the task force judged, the suspect wrapped himself very tightly when committing the crime, which led to the on-site investigation not finding any pointing clues at the scene.

The clothes were black, and the knife was exactly the same as the fruit knife purchased by the task force before. It was covered with blood, and Qian Dakang did not choose to clean it before burying it.

This might be the first time he experienced such a thing, and the murderer was his own son. One can imagine how terrified he was at that time. He had no time to think too much. All he could do was to make these things disappear from his sight as soon as possible.

Qian Yu returned home before ten o'clock, and Qian Dakang left home at three o'clock in the morning, with a gap of five hours in between.

Five hours, minus the time it took Qian Dakang to discover the murder weapon, the father and son must have had a long conversation.

As to whether Qian Dakang’s wife knew about this, it is not clear at the moment.

"Make sure to check carefully!" When he saw the murder weapon, Lu Zhengkai gave an order, "Fingerprints and DNA, there must be no omissions!"

This isn’t the only good news.

The time came to 10:50 pm. The detailed extraction work on the drawer side panel had made progress. There was indeed blood on it. After DNA comparison, it was found to be from the victim Ji Jingfu and one of Ji Jingfu's children.

There were only two people.

There is nothing strange about this. The murderer used two methods of killing when committing the crime. One was cutting the throat and the other was stabbing from the front. When cutting the throat, it is possible that the tip of the knife did not touch the throat, but stabbing would definitely leave blood.

With the irrefutable evidence in hand, Qian Dakang and his son were immediately taken to the interrogation room and interrogated at the same time.

Lu Zhengkai is personally in charge of Qian Yu's side.

"Qian Yu! Did you kill Ji Jingfu's family of four?!" Lu Zhengkai stood in front of Qian Yu, pointed at his nose with the rolled-up medical report in his hand and asked coldly.

Qian Yu looked up and met Lu Zhengkai's eyes. He was a 21-year-old college student, and his face still had a hint of immaturity and inexperience. When asked, he said calmly, "No."

"No?" Lu Zhengkai was furious and threw the medical report directly on Qian Yu's face. "Still talking nonsense to me! A family of four, including two children! How the hell could you do that to me!!"

The inspection report slid down Qian Yu's face, fell on the board in front of him, and unfolded by itself.

Qian Yu had a blank expression on his face as he looked down. Although the edge of the paper was bent and the details could not be seen, the content displayed did not affect reading.

Read the error-free version at 69shuba! 6=9+shu_ba is the first to publish this novel.

There was obvious surprise on his face.

"Did the knife hit the drawer?" Qian Yu said to himself.

Lu Zhengkai shouted, "Did you kill that person?!"

Qian Yu did not answer immediately. He picked up the inspection report in front of him with both hands and slowly unfolded it. Then, under the gaze of everyone, he folded it into a paper airplane.

Holding the paper airplane in his hand, he closed one eye, aimed at Lu Zhengkai, and let it go the next second.

Whoosh!
The paper plane hit Lu Zhengkai's chest, followed by his laughter: "Haha, I killed him, can you keep your voice down?"

"Fuck! You're just..."

Lu Zhengkai was furious. He had never seen such a cold-blooded suspect before, so he took action immediately.

"Lu Zhi, Lu Zhi... calm down!" Zhuo Yun quickly stepped forward to grab him, but it was a little too late. Lu Zhengkai's foot had already kicked Qian Yu, and most of the force was dissipated. "Lu Zhi!"

Others came to help and the scene became a bit chaotic.

Chen Yi and Zhou Yebin are not here. They are in the observation room.

"This bastard really has no emotions." Zhou Yebin's face was equally ugly. He didn't care about Lu Zhengkai's behavior. If he was in the interrogation room, he probably wouldn't be able to hold back.

Not to mention Chen Yi. For such people, he prefers to shoot them directly at the scene of arrest to avoid wasting manpower and resources of the procuratorate and the court, and wasting drugs for injection or bullets for execution.

"Haha."

Without waiting for Chen Yi to speak, Qian Yu in the interrogation room started laughing, as if he found the scene before him very interesting.

He has no fear.

Even though he had confessed his guilt and even though he knew what would happen to him, he had no fear.

The previous judgment should be correct. If this guy is not caught in a short period of time, there is a high possibility that more people will die in Yangcheng.

Serial killers have the potential to grow and will only become more and more difficult to catch in the future. Their methods of committing crimes will become even more cruel as they update themselves.

This time, the task force managed to nip a future serial murder case in the bud.

"Zhuo Yun, you conduct the trial. Let Lao Lu go out first!" Zhou Yebin gave instructions.

Lu Zhengkai left the interrogation room, quickly opened the door of the observation room, and stood next to Chen Yi and Zhou Yebin, with anger lingering on his face.

"Little bastard!"

Lu Zhengkai cursed again.

Chen Yi patted him on the shoulder and signaled him to calm down. The other party had just lost control of his emotions because Qian Yu had deliberately provoked him. Of course, the main reason was that he hated evil and was sad for the deaths of those four people and the two children.

All I can say is that a society ruled by law has saved many scum and beasts.

"Why kill them?" Zhuo Yun's voice was heard in the interrogation room.

Qian Yu still had a smile on his face: "Why? No reason, just kill if you want to."

Zhuo Yun gritted his teeth and suppressed his anger, "Did you know them before?"

Qian Yu: "I don't know him, but I have seen him several times. I saw him at the repair shop and in Xintou Town."

Zhuo Yun: "How many times have you seen him in the repair shop?"

Qian Yu: “Three times.”

Zhuo Yun: "Did you do something with Ji Jingfu's car?"

The maintained car broke down twice in a row, and the task force has never forgotten this suspicion. Since no problems were found after the inspection, the only option left was to question the suspect.

Qian Yu smiled: "You are quite smart. Yes, those two kids are quite cute. If I do something, won't they have to come and fix the car?"

cute?

The scene of the victim's death emerged in Zhuo Yun's mind, and he suddenly felt a surge of anger in his head. He stood up and seemed to be doing the same thing as Lu Zhengkai.

"Zhuo Yun! Calm down! Just don't treat him as a human being! Continue the interrogation!" Zhou Yebin reminded in the observation room.

No matter how stable a policeman's mentality is, he is still just a normal person. It is difficult for him to remain calm when facing a madman like Qian Yu.

Zhuo Yun took a deep breath and slowly sat back.

"How do you know when Ji Jingfu will come to repair the car?" he asked.

Qian Yu: "I don't know, it's just luck. It turns out that I'm lucky. I met this family twice when I went home. I even brought them gifts."

The two children would never have thought that the big brother with such a warm smile would suddenly turn into a devil who tortured them one day.

The interrogation went on normally. Qian Yu did not play any tricks. Knowing that he could not escape the crime, he told everything as if he was telling a story.

The murder plan had been in place for a long time, and he had placed the tools at his grandmother's house in advance because his grandmother's house was very close to Ji Jingfu's home.

On the day of the incident, he left school and went to his grandmother's house, jumped out of the window with the prepared tools, and left the tools outside when he returned.

At nine o'clock in the evening, he returned home carrying the tools used to commit the crime.

"Do you think you're a criminal master just because you've read a few novels and watched a few movies?" Zhuo Yun said coldly.

Qian Yu smiled, pointed at the paper plane on the ground and said, "That should be left by my dad when he touched the knife when he was rummaging through the drawer. If it weren't for my dad's help, you wouldn't have been able to catch me so quickly, right?"

(End of this chapter)