National Forensic Doctor

Chapter 670 Deaths in succession

With Liu Jinghui in charge of arranging the direction of the investigation, Jiang Yuan returned to the anatomy room.

There are still a lot of things he can do now, but he is a little short of time.

First of all, skull restoration is still a top-notch forensic technology. Of course, its technical requirements and difficulty are also top-notch, especially the time it takes. Not to mention performing cranial reconstruction on three corpses, even if it was done on just one corpse, it would take a month or two.

Two months is the normal time. If it takes one month or less, you have to work overtime and constantly develop temporary skills at the critical stage.

As for this case, Jiang Yuan has also begun to perform cranial reconstruction surgery, but he did not say it in a big way. The current size of the task force has increased to almost three brigades, with more than 300 people. Well, with so many people, we can’t just wait for our skull restoration technique to be completed.

In addition to skull restoration, anthropology has always been a high-end mass murder skill. Jiang Yuan also wants to use this to break through, but one thing is that the four corpses discovered so far are all young people, which means, The traces of time left on their bones are very shallow, so shallow that occupational diseases have never affected their bodies.

If a person does not have genetic diseases, does not encounter huge traumas such as car accidents while growing up, is young and has not yet worked, and tends to lie flat, then his bones will be white and shiny, as if they have just left the factory. It is ordinary and ordinary, new and beautiful, and it is difficult to find any trace of breakthrough.

This is just like lamb bones. If you cook two lambs at one time, the finished bones will be mixed together and it will be difficult to tell which is which.

Jiang Yuan moved a chair and sat at the front of the autopsy table, looking at the four corpses in front of him and falling into deep thought.

Corpse No. 4 is still a male, so now the victims have become two men and two women, and it is impossible to even guess the sexual orientation of the murderer.

Or, the murderer did not kill for sexual purposes at all, and the use of social software to hook up was just a scam? Is the purpose to select suitable victims?

If it were from this angle, a psychoanalyst would have guessed at this time whether the murderer's sexual function was damaged, or when he received what kind of blow...

Jiang Yuan shook his head. His experience was not enough to deal with this proposition, so he should focus on the corpse itself.

The four victims were all young, all under 30 years old. Corpse No. 2 had fractures and wear and tear on the knees, but they were not serious enough to be named.

A huge problem here is that they all come from out of town, maybe even from foreign countries, like Mike. If the scope cannot be delineated, even if some anthropological characteristics are determined, it will still be difficult to find the specific identity of the corpse.

This is arguably a limitation of forensic anthropology. It is a collection of conditions, but it is not like a fingerprint or DNA that can point to a unique person.

"Let's sort it out again." Jiang Yuan jumped down from the chair and decided to start over and study the bones again.

When you are undecided, redrawing the picture can be considered a solution.

This looks like another two days.

Afternoon.

Liu Jinghui came to the anatomy center to communicate with Jiang Yuan and saw that Jiang Yuan was already studying insects.

"How's it going? Did you find anything new?" Liu Jinghui was still looking forward to it.

"Not yet. I want to re-determine the time of death and see if I can get more clues." Jiang Yuan's time-of-death identification skills are extremely high. If you use the temporary +1 skill to supplement it, maybe you can get it. Breakthrough.

That's what he's thinking about, but he hasn't found any clues yet.

"What about you? What's the latest news?" Jiang Yuan asked.

Liu Jinghui smiled and said, "Didn't I send someone to the victim's house two days ago to check it out? There is something in the house in Shanghai, but not much."

"Oh, what did you find?" Jiang Yuan did not follow to see, mainly because the Criminal Division Center of Zhengguang Bureau has a very high technical level of on-site investigation, at least LV3 level, if not enough, there is LV4, which is the same as Jiang Yuan , in this case, there is no need for him to take action personally.

Liu Jinghui said: "The victim's house is rented in Wutong District, which is the highlight of Puxi in Shanghai. The rent is very expensive, costing 60,000 yuan a month. The decoration is very good. In the past two years since his disappearance, his parents have been paying him You pay the rent, even though it’s the company’s money.”

"Benefits for Fortune 500 companies?"

"The personal welfare of Fortune 500 executives." Liu Jinghui did not go into details on this topic, and continued: "The DNA of many people was collected at the scene, and he also stocked a large number of adult products such as condoms at home. Judging from interviews and videos, this Li Mai should be a playboy, and he has a two-way plug. Alas...he's back again."

Jiang Yuan knew what he meant. Since Li Mai had a two-way plug, it meant that the murderer might still be a sexually oriented murder, and the investigation clues returned to the original starting point.

"Li Haochen is already thinking about writing a psychological profile of the murderer." Liu Jinghui said the main reason for coming here today.

Jiang Yuan couldn't help but look at Liu Jinghui and asked, "Is it effective?"

"It hasn't been figured out yet, but it's basically the result of childhood trauma and bedwetting since childhood." Although Liu Jinghui is good at reasoning, he doesn't really believe in psychological profiling, and he doesn't give much respect in his words.

Jiang Yuan recalled Li Haochen's state, smiled, and then gradually stopped smiling.

In other words, after two days of investigation, there are still no clues.

"The technical investigation department is also conducting an investigation. This cost is also very high. We hope to find the identities of the other two victims."

Of the four victims, it is now confirmed that there are two, one male and one female, but there are not many similarities that can be found between the two, let alone the murderer.

"I found something here that can be used as a reference." Jiang Yuan took out a notebook from the drawer.

Liu Jinghui took out his notebook and pen and said, "You tell me, I'll take notes."

"It's not that serious." Jiang Yuan waved his hand and said, "When I looked at the time of death of the corpses, I found that there was obviously a difference in the time of death of these three corpses, especially corpse No. 2 and corpse No. 3. Although they have all turned into white bones, it can still be seen that there is a certain difference in the degree of weathering of their bones. If the time of death was not far apart, there would not be such an obvious difference."

Liu Jinghui was shocked when he heard this: "Is there an obvious difference in the death time of the three corpses? How big of a difference?"

"No. 2 died first, about two weeks after his death, No. 1 died next, and then No. 3, about two weeks after No. 1 died." Jiang Yuan paused and said: "There is also a problem with the generation of insects. I actually found the cause by working backwards from the abnormal genealogy of insects."

"In other words, after the murderer killed No. 2, he did not dig a hole to bury him. He waited for about two weeks, waited until No. 1 came, and then killed again, but still did not dig a hole to bury him. He waited until No. 3 came and then killed him again. , and then buried them together? Then where to put his body? "

"I'm not sure. It's very likely that the corpses were exposed in the wilderness." Jiang Yuan didn't think about it. He just said: "The eggs, maggots, and adult stages of some insects require an above-ground environment. The insect system of the three corpses is very confusing. , if you look at it carefully, it at least shows that they were not buried at the same time and at the same place."

"Throw it on the ground first, and then bury the bones and the like in the soil together?" Liu Jinghui couldn't help but shake his head: "This is a lot of work, won't it leave traces on the ground?"

"Maybe it's left, but it won't be visible after more than two years." Jiang Yuan also introduced: "Put it in a hot surface environment, and a corpse can turn into bones in 14 days."

Liu Jinghui asked: "Where's the taste? It's possible that someone will see it."

"Maybe." Jiang Yuan shook his head. He hadn't figured out this part yet, or there was something fishy about it.

"In that case, we still need to find the first place where the body was abandoned?" Liu Jinghui believed Jiang Yuan's conclusion on the spot. If it were another person, hearing such an outrageous technical conclusion, it would have taken a while to prove it.

Liu Jinghui skipped this step and thought directly based on this.

This time, Liu Jinghui thought for a long time, took out his tablet computer, and kept looking at the photos of the scene.

As he looked at it, Liu Jinghui's eyes rested on a photo of a sewage pool and said: "We have searched this wasteland several times, but these sewage pits have not been carefully searched from beginning to end. ’s exploration.”