National Forensic Doctor

The test results of corpse No. 4 were similar. It was the corpse of a 28-year-old woman, 165 centimeters tall and weighing about 100 kilograms.

She died 20 months ago. According to the order, she is the third deceased victim among the four bodies found so far.

Jiang Yuan extracted the DNA of No. 3 and No. 4 respectively and sent them directly to the provincial laboratory.

The extraction of DNA is also a science. The DNA laboratory of an ordinary police station is equipped with a cost of 3 million in accordance with the requirements of the ministry. There is no big problem when doing DNA from blood, muscle, or certain liquids. But facing the old carrion, it was a bit powerless.

Jiang Yuan also had LV4 forensic medicine, so he extracted the test materials from the bones. However, he still felt guilty as to whether he could be a match. Most people's DNA information was not preserved.

When the work here was almost done, the sound came from the scene again. Human bones are found again. No surprise at all.

The criminal buried the body along the national highway. Of course, if police dogs were not used, these corpses would not be found at all.

It can be seen from the timeline that the further back the body is, the deeper the murderer is buried.

The burial depth of corpse No. 4 was only sixty or seventy centimeters, and the burial depth of corpse No. 3 was a little deeper.

At this depth, it is already difficult for ordinary police dogs to detect it. This can also be regarded as an escalation of the murderer's crime. From whole corpses to headless corpses, from shallow burials of thirty or forty centimeters to depths of sixty or seventy centimeters, it is conceivable that body bags are getting smaller and smaller, which is also related to the difficulty of burying corpses. It is actually not easy to dig thirty to forty centimeters in the wild. If you want to dig to sixty or seventy centimeters, or even one meter deep, it will take a young man two or three hours, and he will be sweating from exhaustion.

By dividing the corpse into body bags, the hole can be dug shallower, but the remaining corpses will have to be dealt with additionally.

If we continue at this pace of development, we will wait until the murderer digs the hole to reach 1.8 or 2 meters. It was difficult to smell the corpse anymore. Jiang Yuan arrived at the No. 5 scene as quickly as possible.

Just like before, it was just a shallow hole with a snakeskin bag planted inside. "Is it a duplicate corpse?" Liu Jinghui stood outside the circle without going in, waiting for the answer.

Jiang Yuan silently checked, then said "Yes" and said: "No. 3, the other leg."

"It was cut so evenly. He couldn't bury a body in a day like this." Liu Jinghui actually guessed that the murderer couldn't bury one leg and leave the other. That would be too perverted.

It's better now. Liu Jinghui's mind became more active when he discovered that he was an ordinary perverted murderer.

While Jiang Yuan was inspecting the body, Liu Jinghui was thinking and said: "The murderer's education level should not be very high, and he may be relatively lonely in work and life."

Most serial killers are quite withdrawn. Jiang Yuan complained internally, but did not interrupt Liu Jinghui's words, so as not to interfere with his thoughts and prevent the reasoning king from casting spells.

Despite the fact that so many bodies were found, there was no conclusive evidence.

This is also the most annoying part of the backlog of cases. Logically speaking, if the murderer left fingerprints on the handbag, or left a cigarette butt in the corpse pit, or a pool of blood poured into the pit, the case would be closed immediately. .

But time has wiped out a lot of things, and the murderer was also very meticulous in what he did at first.

However, Liu Jinghui's reasoning does have something to it. Judging from the on-site excavations in the past few days, the murderer has obvious signs of growth, but he was born and raised. Among other things, the purpose of dismembering the body is to hide the body, and the purpose of burying the body is to hide the body, but there is time to bury the body. It was buried so shallowly. Although it was buried deeper later, it was not deep enough.

Fundamentally speaking, if the murderer had buried No. 1 and No. 2 deeper, Case 805 would have been delayed until later. And all this knowledge can be learned through public books.

Killing so many people and yet not seriously studying the relevant knowledge is a sign of low education. In fact, even the petty thieves, as long as they have a high school diploma, will spend some time studying law when they go to prison. Only those who have difficulty in reading will

It's difficult, for example, only a boss with a primary school education will pretend to say, "It's useless to learn those things."

Of course, crime must also pay attention to cost and benefit. The entire criminal law does not use heavy punishment like in the era of "Three Chapters of the Law". It is just to make people think carefully and have more choices after they want to commit a crime or start committing a crime. If you act cruelly and cruelly, there will be consequences for those things.

The murderer of Case 805 was relatively lacking in this aspect.

Liu Jinghui continued: "In the past two days, I have also sorted out the people living and working nearby. I personally prefer the latter. Because the people living here are mainly local villagers. If they want to bury the body, , there should be more choices, it doesn’t have to be buried beside the national highway, which is inconvenient. The rest are actually people who rely on the national highway for work and commuting.”

"It is very possible that the depth at which he buried the body gradually moved away from the national highway." Jiang Yuan thought for a moment and said: "The 80-kilometer long national highway is more than 80 kilometers long, and there may be a lot of staff."

"Traffic police, road maintenance workers, greening workers, various construction workers, including power network communications, gas stations, shops and small factories along the line, express delivery, the key to transportation is not necessarily within this 80 kilometers. It is very possible to go out for dozens of kilometers." Liu Jinghui frowned, this list must be difficult to make, and it is easy to miss.

"You can also contact the dead." Jiang Yuan reminded.

"Yeah." Liu Jinghui frowned, his mind probably filled with balls of wool.

Mu Zhiyang, who had followed Jiang Yuan to take action, had nothing to do. He said briskly: "At least we are making much faster progress than the Luyang people."

When he said this, the atmosphere at the scene immediately improved. At least, the atmosphere next to the corpse was much more lively.

Liu Jinghui glanced at the leaders of Luyang City and said: "In the final analysis, we still made up our minds and investigated the national highway. In fact, the source of the corpse cannot be determined for the time being, so we can be bolder."

"How bold?"

"I remember that No. 1 was for selling people. In this case, the bodies were buried along the national highway. The murderer was a worker near the national highway. There were many deceased people, but no family members came to complain and searched for them. I think it can be assumed that No. 2, 3, and 4 The deceased was also a prostitute." Liu Jinghui clapped his fingers and said, "Let's first find all the prostitutes near the national highway, especially the missing ones, and compare them. It's best if they succeed, and if they don't, the list is not long. "

"Okay!" Jiang Yuan responded immediately.

The lost girl definitely has a place among the victims of serial murders.

They are easy to be attacked, often change their workplace according to the murderer's preferences, have weak resistance, are sexually attractive, come into contact with many people from all walks of life, and lack stable social relationships around them. They often go missing without being noticed. , is a target that many serial killers like to hunt.

From a certain perspective, some serial killers are able to continue killing without being caught, probably because they like to hunt down fallen girls.

The murderer of Case 805 didn't look too smart, and his physical fitness was probably average. He could continue to kill people, maybe because he was killing girls who had fallen off their feet?

It didn't matter that so many corpses were not found before, but now many corpses have been found. Considering that no one came to the Luyang Municipal Bureau every day to cry out for help, the situation became unusual.

Liu Jinghui took out his cell phone and immediately asked about Lu Yang.