Chapter 375: Bold Assumptions

The test results of the No. 4 corpse were similar, a female corpse aged 28, 165 cm tall, and weighing about 100 jin.

Her time of death was 20 months ago. According to the sorting, she was the third victim to die among the four corpses found so far.

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

DNA extraction is also a science. The DNA laboratory of ordinary police stations, which is equipped with 3 million according to the requirements of the ministry, has no big problems when doing DNA of blood, muscle, and semen, but it is a bit powerless when facing rotten corpses with years.

Jiang Yuan also has LV4 forensic physical evidence science, so he extracted test materials from the bones. However, whether it can be matched, he is still relatively guilty. Most people's DNA information is not retained.

After the work here was almost done, the scene came with sound again. Human corpses were discovered again. No surprise at all.

The perpetrator was burying corpses along the national highway. Of course, if police dogs were not used, these corpses would not be discovered either.

From the timeline, it can be seen that the later the corpse, the deeper the killer buried it.

The burial depth of the No. 4 corpse reached 60 or 70 centimeters, and the No. 3 corpse was even deeper.

At this depth, ordinary police dogs are already very difficult to discover. This can also be seen as a kind of criminal escalation of the killer. From full corpse to headless corpse, from shallow burial of 30 or 40 centimeters to a depth of 60 or 70 centimeters, even one meter, one can imagine that the corpse bags are getting smaller and smaller, which is also related to the difficulty of burying corpses. Digging 30 or 40 centimeters in the wild is actually not easy. To dig to 60 or 70 centimeters, or even one meter deep, young people have to spend two or three hours and sweat a lot.

Dismembering into corpse bags, the hole can be dug shallower, but the remaining corpses have to be handled additionally.

According to this development progress, when the killer digs a hole to one meter eight or two meters. It will be difficult to smell the corpse. Jiang Yuan arrived at the No. 5 scene at the fastest speed.

Like before, it was just a shallow pit, with a snake-skin bag planted in it. "Is it a repeat corpse?" Liu Jinghui stood outside the circle, not entering, waiting for the answer.

Jiang Yuan checked silently, then "En" and said: "No. 3's, another leg."

"Cut so evenly, he is like this, he can't finish burying a corpse in a day." Liu Jinghui actually guessed it too. The killer couldn't bury one leg and leave the other leg, which would be too perverted.

Now it's good, discovering a killer with an ordinary degree of perversion, Liu Jinghui's thinking also became active.

Taking advantage of Jiang Yuan checking the corpse there, Liu Jinghui thought while saying: "This killer's education level should not be very high, and in terms of work and life, he might be relatively isolated."

Most serial killers are quite isolated, Jiang Yuan complained in his heart, but didn't interrupt Liu Jinghui's words, so as not to interfere with his train of thought and prevent the reasoning king from casting spells.

Don't look at finding so many corpses, there is no decisive evidence.

This is also a disgusting link in cold cases. According to reason, if the killer left fingerprints on the handbag, or cigarette butts in the corpse pit, or blood in the pit, the case could be closed directly.

But time has destroyed many things, and the killer did it very carefully at the beginning.

However, Liu Jinghui's reasoning does have some things. From the excavation of the scene these days, the killer has obvious growth traces, but they are all native types. Not to mention anything else, dismemberment is to hide the corpse, and burying the corpse is also to hide the corpse, but he buried it so shallowly when he had time to bury it. Although he buried it deeper later, he didn't bury it deep enough.

From the root, if the killer buried No. 1 and No. 2 deeper, the 805 case would be delayed to the back. And these knowledge can be learned completely through public books.

Killing so many people, and still not seriously learning relevant knowledge, this is the performance of low education level. In fact, even small thieves, as long as they have a high school diploma, when they enter prison, they will spend some time reading the law. Only those who have difficulties in reading, such as old rough men with primary school education, will pretend to say "learning those things is useless".

Crime, of course, also pays attention to cost-benefit. The criminal law is not like the era of "three chapters of law" and uses heavy punishment, just to let people think carefully when they want to commit a crime or start a crime, and choose more, don't rush to be fierce and cruel, that thing has consequences.

The killer of the 805 case is relatively lacking in this regard.

The 805 case's killer is relatively lacking in this regard.

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 corpses, they should have more choices. There is no need to bury them all on the side of the national highway, which is not convenient enough. The rest is actually relying on the national highway for work and commuting. The key is that it is not necessarily within this 80-kilometer range. Extending out for dozens of kilometers is very possible."

"Very possible." Jiang Yuan pondered and said: "80 kilometers long national highway... it's more than 80 kilometers, there might be many staff."

"Traffic police, road maintenance workers, greening workers, various construction personnel, including electricity, network, communication, gas stations, shops and small factories along the line, express delivery, transportation... the key is not necessarily within this 80-kilometer range, extending out for dozens of kilometers is very possible." Liu Jinghui frowned. This list is definitely not easy to list, and it is very easy to miss.

"And can contact the victim." Jiang Yuan reminded.

"En..." Liu Jinghui frowned, his head full of wool balls.

Mu Zhiyang, who came to help Jiang Yuan, had nothing he must do, and said lightly: "At least our progress is faster than the Luyang people."

As soon as he said this, the atmosphere at the scene immediately became active. At least, the atmosphere next to the corpse became active.

Liu Jinghui glanced at the leaders of Luyang City and said: "In the final analysis, it is because we made a painful decision to screen the national highway. In fact, if we can't determine the source of the corpse for the time being, we can be bolder."

"How bold?"

"I remember No. 1 was selling... This case, burying corpses along the national highway, the killer is a staff member near the national highway, multiple victims, none of them have family members coming to cry for grievances and search in many ways. I think we can assume that No. 2, No. 3, and No. 4 victims are also selling..." Liu Jinghui counted his fingers and said: "Let's find out the people selling... near the national highway first, especially those who are missing, compare them. Success is best. If we can't succeed, this list is not long."

"Can!" Jiang Yuan immediately agreed.

Lost girls are definitely going to occupy a seat among the victims of serial murder cases.

They are easily attacked, often change workplaces according to the killer's preferences, have weak resistance, have temptation, contact many people from all walks of life, and lack stable social relationships around them. Often they are not noticed when they go missing, and are targets that many serial killers like to hunt.

From a certain perspective, some serial killers can continue to kill without being caught, perhaps because they like to hunt lost girls?

It didn't matter if so many corpses weren't found before, but now that multiple corpses have been found, and considering that no one runs to the Luyang Municipal Bureau to cry for help day by day, the situation has become unusual.

Liu Jinghui took out his phone and immediately inquired about the Luyang side. ===== CHAPTER 376 =====

Liu Jinghui took out his phone and immediately began inquiring about the situation in Luyang.