Chapter 357 The troops are divided into two groups
Yunzhou and Huangzhou are both in the south. This wave of business trips to Liangzhou City will not be back for ten and a half months.
Besides, when the criminal investigation detachment goes on business trips, they rarely fly.
Many times the type of transportation used within the system is determined not by the urgency of the work, but by the level of the person taking it.
As for the criminal investigation detachment, which is similar to Cheng Zihao's level, they can only take trains, and at most they can only sleep in hard sleepers or soft sleepers.
In fact, from an economic perspective, many air tickets are sometimes cheaper than train sleeper tickets.
However, it doesn’t matter now. The mutilation case was a backlog from three years ago, and the urgency of the investigation does not lie in one or two days.
The two groups went home directly to pack some luggage and things and set off today.
“Pay attention to the methods, communicate more with local colleagues, and call anytime if you have any questions.”
At the train station, Cheng Zihao was making the final explanation.
"Brother Cheng, don't worry. We are not young. We promise to complete the task."
Cheng Zihao nodded. He brought these people out by himself, so he can rest assured.
And they are only following the case of Zhang Can’s disappearance, so the danger is not that great.
But I have to be more careful on my side. If Wang Jian is really the murderer, he may have killed more than one person.
According to the autopsy results of the corpse dismemberment case at that time, the other party was experienced and the method of dismemberment was relatively professional.
Dismembering a body is not only a physical job, but also a technical job.
The strength of human bones is much stronger than many people imagine. For example, the human skull can generally withstand a heavy bombardment of 200 kilograms to 500 kilograms.
In some murder cases, the murder method used by the murderer is to hit the skull with a blunt instrument to cause death.
Judging from the forensic autopsy results of corpses that died in this way, it is rare that one blow can cause death. Most of them are hit multiple times, 10 times, 20 times, or even More often than not.
Although this method of percussion can damage the skull, what really causes death is the transmission of concussive force that causes damage to the brain in the skull and death.
The damage to the skull itself was relatively minor.
This is true of the skull, and so is the other bones.
The hardness of the bones means that the tools needed to dismember the body must be strong, otherwise it requires superb skills.
Know how to divide the body along the joints between bones.
This ability is commonly known as Pao Ding Jie Niu.
The murderer in the corpse dismemberment case used the method of dicing and dismembering the cow to dismember the body. There was no damage to the bones caused by powerful tools such as axes and saws.
The murderer used some kind of knife to dismember the body along the bones. Although he was not particularly familiar with the technique and there were many scratches on the cartilage, as far as ordinary people are concerned, he was definitely professional.
This kind of ability cannot be obtained by killing pigs and other slaughters. It is most likely accumulated from the experience of killing and dismembering many times.
After all, the structure of human bones is different from that of pig bones.
It is impossible to say that the other party has a learning background such as forensic medicine, because the technique is relatively rough and cannot reach the level of professional learning.
While Cheng Zihao and others were wandering around on the train, Lu Chuan once again locked himself in the underground laboratory under investigation.
With more than thirty sets of superimposed shoe prints, Lu Chuan not only had to separate them, but also compared them to finally determine which shoe prints were left on top and which were more numerous.
This time, Lu Chuan used the graphics layering of image processing software. Because the weight and clarity of the footprints were different, it was very difficult and a careful job.
At the end of the day, Lu Chuan had only completed the hierarchical analysis of less than ten groups of footprints.
The progress of this work is slower than Lu Chuan expected yesterday. He originally thought that more than 30 sets of shoe prints could be analyzed in two to three days, but now it seems that it will only take three to four days. It's possible.
However, it doesn’t matter if it takes longer. There have been no new cases in the criminal investigation detachment in the past two days. Ren Qiang and Sun Jun are still working on the previous cases.
Although Lu Chuan gave direct clues and the suspect over there was also caught, the subsequent interrogation evidence was fixed and there were still many processes to go through.
It doesn’t take more than three or five days, and it’s always busy over there.
At the same time, several of Cheng Zihao's subordinates also arrived in Yunzhou.
"Zhang Can went out to work when he was in his twenties. He didn't have a fixed place. He was in the south a few years ago and then went to the north. Anyway, he went wherever he could make money and where friends recommended him."
Zhang Can Can's wife and Zhang Can grew up in the same village. Zhang Can went out to work after getting married, and has been working outside these years.
“But he comes back every year before the Chinese New Year, stays at home for two months, and basically has video calls with his children and me every day.”
“But three years ago, he suddenly There was no message, I didn’t answer the video, and I couldn’t get through the phone call. Then the phone was turned off and I couldn’t contact him again.”
“Then I called the police.”
"Do you know where he worked and who he was with?"
"I heard it was in Tianzhou City, but I checked there and found nothing."
Tian State or city?
“Did he tell you that he was going to work in Liangzhou City?”
“It seems that he mentioned it once, I can’t remember clearly.”
"Where's the man? Who did he go with?"
"When he was in Tianzhou, he was with people from our village. Then they suddenly separated. I asked about him and he said he had the same surname. Wang’s people left, and no one in the village saw him since.”
“Is that man named Wang Jian?”
“I don’t know, I just know his surname is Wang.”
“Is the person from the village who worked with your husband that year still there? Can you take us to meet him?”
Huangzhou, Jianshe Road Police Station.
"Old Huang, this is Cheng Zihao, the leader of the Liangzhou City Criminal Investigation Detachment. I have something to investigate. You are most familiar with the community situation in our jurisdiction. Please introduce me."
" Okay, director, don’t worry, Captain Cheng, hello, my name is Huang Jun, and I’m in charge of the community work in the institute.”
Old Huang is indeed very old, over fifty years old.
Cheng Zihao heard from the director here that Lao Huang had worked at the Jianshe Road Police Station all his life, doing household registration work in the past. Later, when computers were introduced, he couldn't understand it, so he did community work.
"Brother Huang, I'm not a captain, just call me Xiao Cheng."
As he spoke, Cheng Zihao handed over the cigarette: "Brother Huang, I'm here this time to find someone named Wang Jian. Man, this is his information.”
The household registration system is connected nationwide. Huang Jun first took the cigarette and then looked at Wang Jian’s information.
“So it’s him, I know this guy.”
Know him?
Cheng Zihao's eyes lit up: "Brother Huang, tell me, what's going on with this guy?"
"Wang Jian was born and raised here. His dad used to be a security guard at a cotton spinning factory. We often interacted with each other, so we knew each other. "
"There was a fire in their house a few years ago, and my father was burned to death inside. After that, Wang Jian went out to work and couldn't come back for a year."
(End of this chapter)