Chapter 805 A Murderer Was Described

"Let's find the files and evidence of these cases."

Jiang Yuan picked out a few cases and asked Lei Xin to find the things. He is now working on more backlog cases and has a different understanding of the cases.

The difficulty of a backlog case is not only reflected in the nature of the case and the type of evidence, but also depends on the completeness of the evidence in the case and whether the evidence is collected sufficiently.

To put it bluntly, some backlog cases are ruined by some idiots. But facing such backlog cases, you still have no way to deal with them.

Jiang Yuan is quite familiar with the criminal police team in Qianjin District. It is considered to be the top level in Qinghe City. However, it is still difficult for a team of this level to completely eliminate the existence of idiots. Jiang Yuan asked Lei Xin to screen it, hoping to find a case that is relatively easy to solve, at least it looks relatively easy.

As for actively looking for difficult cases to do, that is to treat their own backlog team, the other party's criminal police team and even the hundreds of people in the police station as non-human beings - if there are political factors, it is force majeure, if not, it is pure stupidity.

Lei Xin led people and went straight to the archives room and the evidence room.

The number of cases in the Qianjin District Bureau is extremely large throughout the year, and their evidence room is naturally not as well-organized as on TV. Of course, the hardware of the evidence room must be well-organized, especially the large stainless steel cabinet in the front, which even looks a bit handsome.

However, the evidence in the cabinet is a bit messy. "One case, one cabinet" is a good system, provided that the increase in the number of cabinets can keep up with the increase in cases.

If it can't keep up, the cabinet is full, and you can only find a way to put more.

Of course, unfinished cases can still get extra treatment. Despite this, various evidence files are still filled in the cabinet, making it difficult to distinguish.

Lei Xin sorted the cases very carefully, and did it himself with gloves on.

The apprentice followed and whispered, "Lei Da, you should take a break. We will call you to check after we figure it out."

"Why take a break now?" Lei Xin glared back and said, "We are not working hard for Jiang Yuan's case, we are working hard for our own case. Prepare the case well. If Jiang Yuan can solve it smoothly, he may be able to solve a few more cases in the future. He is here, so he won't leave after doing one case."

Lei Xin thought clearly in his mind that he didn't have another serial rape case to summon Jiang Yuan, so he had to use him as much as possible while Jiang Yuan was still here.

In the basement, Lei Xin and others were working hard, while Jiang Yuan and others in the conference room were chatting in groups of three or two.

Some people who didn't like to talk would hold their mobile phones in the corner and read them.

Jiang Yuan has not decided on a new case yet. Several criminal police officers from the backlog case team present are more active. They boldly analyze the cases at hand and ask Jiang Yuan for judgment from time to time.

Li Jikuan felt itchy when he heard it. Taking advantage of the gap between the conversations, he suddenly said, "Captain Jiang, can you help me look at a case?"

"If you just look at the evidence involved in the case, it's fine." Jiang Yuan usually helps people look at fingerprints and footprints in the group, but he certainly doesn't have time to handle cases in a one-stop manner like in Qinghe City or Beijing.

Li Jikuan naturally didn't expect this, and hurriedly said, "It would be great to see the evidence. Our special case team took over a current case five days ago, and we have been busy until today without any results. The people we are here to arrest this time are also related to the case."

"Are there footprints, fingerprints or bloodstains?" Jiang Yuan didn't even ask what case it was, and asked about the evidence first.

Li Jikuan nodded quickly and said, "There are footprints, DNA, and blood."

Li Jikuan quickly entered the intranet from the computer, showed it to Jiang Yuan, and introduced: "We analyzed that this case should be a revenge case or a murder in passion. The victim was a small contractor who undertook the decoration work of a residential building in the community. He was carrying angle grinders and other machinery that day. As a result, he was stabbed three times and died of excessive blood loss..."

As he spoke, Jiang Yuan also saw the photos of the scene of the crime.

The incident occurred in the stairwell of a residential building under renovation. The deceased fell on the stairs between the second and third floors, with his feet above his head and a large pool of blood under his body.

The victim was stabbed three times in the abdomen, with signs of struggle, and he should have crawled forward two steps. An angle grinder and a tool box fell beside him, and his clothes were relatively clean, indicating that he had not started working yet, or had only started working for a short time.

Because it is a community under renovation, there is no camera inside the community. There is a working camera at the gate of the community, but the community access control is not strict, and there is basically no restriction on entry and exit. During the renovation period, there is still a mixed flow of people and cars, and the camera can't capture all the faces of people in the car.

The situation around the community is similar. There are either farmland or large construction sites within a few hundred meters. There is a village nearby, but it is also a few hundred meters away and there is no surveillance.

Liu Jinghui was also curious and listened to it from the side. By the way, he stood behind and watched Jiang Yuan looking through the photos of the crime scene. He couldn't help but say: "Fortunately, it was not a robbery and murder, otherwise, solving this case can only rely on luck."

Li Jikuan smiled bitterly: "Now it depends on luck. We checked the victim's network of relationships and didn't find the suspect. What did the victim say? His job was to do decoration, and he had some disputes with the previous owner and workers, but it didn't reach the level of murder."

He was not so pessimistic before he went out. At that time, the case was a fresh and hot murder case, and the police on the task force were also full of confidence. However, within two days of Li Jikuan's departure, the case had gone from a three-day golden case to a five-day case. The silver of heaven.

There is no suitable suspect at this time, which is really a very dangerous sign.

Jiang Yuan understood Li Jikuan very well. Without him, he had seen too much.

Nowadays, murder cases are generally relatively common. The main force of killings has been the highly skilled people born in the 1950s, 1960s, and gradually transitioned to those born in the 1970s and beyond. The young people of this generation mainly have many ideas, which are difficult to implement, and their emotions are particularly uncontrollable.

Just like the Malaysian internet celebrity case that Jiang Yuan worked on, the murderer who was only 15 years old, although he was doing a very physical job like a courier, his body was not strong, and he was not even able to compete with a 20-year-old A young internet celebrity who works out regularly. But he still has a bad temper. If he can't borrow money, he wants to rob him. If he can't rob him, he will look for a knife...

Not only that, but the 15-year-old boy who probably rarely does housework also fantasizes about wiping away a lot of blood - if he could do this easily, he might fantasize about dismembering or abandoning the body.

In fact, many perpetrators have had similar fantasies, but most of them were defeated by reality if they were not carried out.

If a normal person is poked in an artery or important blood supply organ, more than 3,000 ml of blood can flow out, and as much as 4,000 to 5,000 ml. Moreover, dead people may be incontinent, so hundreds of milliliters of urine may be mixed into it. How difficult would it be to try to clean up the blood? Pour four large 25-liter bottles of Coke onto the floor and see if they can be wiped clean.

People with a little bit of housework experience cannot use this method of killing if they plan to kill and dismember the body. At the very least, they have to move the person to the bathtub and then cut the neck. This is like killing a pig and holding it in a basin. Let's do this. The whole family will spend the New Year to the third day washing the yard.

The murder case at a decoration construction site in Jeju seems not complicated, but after several days of investigation, there is no result, which makes people anxious.

Li Jikuan has just reached the stage where he needs help but has not yet actively sought help.

The Jeju police will not really get anxious until the case cannot be solved for a week.

If this kind of case, in which everyone is fully involved, cannot be solved within a week, the probability of it becoming a backlog is very high.

Jiang Yuan had no intention of taking over their case, he just wanted to help. He looked at the blood stains at the crime scene, and then at the bloody footprints left at the scene, and said, "That's good, I'll give you a range, 豼Go find someone to compare with and see if you can meet him.”

"Okay." Li Jikuan hadn't realized yet what Jiang Yuan was going to do.

Wang Chuanxing next to him had already taken out his notebook, tried the pen, and placed it in front of him.

"The murderer is 1.75 meters tall, male, well-proportioned and powerful, weighing 140 pounds. His right leg is slightly longer than his left leg. This can be clearly seen from his footprints. It is about two centimeters longer, so he is lame. In addition, the murder weapon is left-handed, do you have any judgment? "

Jiang Yuan spoke slowly, but Li Jikuan's mind moved even slower.

At this time, Li Jikuan had only one thought in his mind: Lame left-hander, wouldn't the case have been solved just by asking someone?

After receiving Jiang Yuan's question, Li Jikuan thought for a while before reacting and said: "It's a single-edged knife, about 30 centimeters long, with a pointed end and a small hand guard. It seems to be like a boning knife."

The murderer stabbed him three times, but the traces of the murder weapon left behind were quite heavy. Forensic doctors can make corresponding analyzes on the morphological characteristics of the murder weapon based on the wounds of the deceased.

Jiang Yuan nodded and said: "The first part of what your forensic doctor said is correct. As for the specific knife, I prefer it to be a national knife, such as a Tibetan knife."

Jiang Yuan randomly searched a picture of a hidden knife from his mobile phone and showed it to Li Jikuan, and said: "I don't know if the knife management in your city is strict. In Qinghe City or Changyang City, you can't pass the security inspection with such a knife, so You can’t fly or take a train, so most people won’t carry it with them, especially if it’s sharpened.”

"So maybe they are from ethnic minorities?" Li Jikuan's mind finally turned around: "They may have some ethnic habits that require the use of knives, or they like to carry a knife with them..."

Jiang Yuan nodded and said: "It's possible, but I'm not sure. I can verify it if I find it later."

Li Jikuan nodded repeatedly, picked up the phone, looked at Wang Chuanxing again, and whispered: "Team Wang, lend us a note to take a photo of, I'm afraid I made a mistake..."

Wang Chuanxing handed over the notes generously.

Li Jikuan hurriedly took a photo, laughed twice, turned around and ran away, as if he had learned some secret.

"Lao Li ran so fast?"

When Lei Xin came in from outside, he saw Li Jikuan's legs moving very fast.

"Jiang Yuan just described a murderer for him." Liu Jinghui also felt a little itchy and asked, "How was the investigation of your case? Are all the evidences and everything?"

"Uh, all...all..." Lei Xin nodded and frowned, still thinking, what does it mean to describe a murderer?