novice forensic medicine

Chapter 272
Zhou Ning shook his head, he couldn't figure it out either.

According to the information provided by Zhang Niannian, if the two children of the Xu family were counted according to the incident seven years ago, it would be 2005.

The eldest son, Xu Qing, was 25 years old at the time and was already working in No. [-] Middle School of Rudong City. Although he didn't buy a house, he lived in a dormitory and was away from home all year round.

The second daughter, Xu Dan, is 21 years old. She is a third-year student at the Ludong University of Finance and Economics. The school is in the provincial capital, and she goes home once half a semester.

The old Xu Xu Xiangnian is a doctor in the village clinic and has worked hard for more than 30 years. Xu's mother, Zhang Shan, is a middle school teacher with a good reputation. Will such a family have feuds with others, and even hide their corpses in the attic of their home?
Zhou Ning couldn't figure it out, and couldn't give Zhu Xingxing the answer.

"It's meaningless to speculate at this moment, let's do an autopsy on the skeleton first."

Zhu Xingxing shut up, but Sun Gaotie consciously registered all the skeletons, Zhao Xinli and Yang Xuetong kept taking pictures, Zhou Ning grabbed the magnifying glass with LED lights, and kept observing carefully up and down.

After studying the skeleton, he went to the nearby table and began to examine the rotting clothes.

The clothes looked like a suit. Zhou Ning searched for the collar of the suit lining. After searching for a long time, he found that the trademark on the inside of the collar had fallen off. Xu Guanhai came over and found the label in his pocket with tweezers. .

"Director Zhou, are you looking for this thing? I found it in the bag and stuffed it in my pocket."

Zhou Ning observed it. The sign should have been a silver substrate with a black logo embroidered on it. It looked like a horse with a flying mane. Below it was a line of letters YOUNGOR, and there was no Chinese logo.

"Younger?"

"Well, it feels like Youngor, but this brand seems to have become less famous in the past two years."

Xu Guanhai kept nodding.

Zhou Ning pinched the material and rubbed it a little. The material is very dense, it seems to be dark gray, with a grainy feel inside.

"Did you check the material of the fabric when you sent it for inspection?"

"I checked, and it is said to be 90% wool, which is considered a relatively good wool material, but now suit materials are rarely used in this way, and I feel that this material is not cheap."

Zhou Ning hummed, and stood a little farther away. Although the clothes were severely torn and damaged in many places, it was true what Xu Guanhai said, this suit was not cheap.

"Lao Yang measured the waistline of the trousers, as well as the length of the trousers, the width of the shoulders, the length of the sleeves, the size of the collar of the shirt, and the size of the shoes. Let's compare them to see if there is any discrepancy with the estimated weight of the deceased. Be careful not to tear them, as the material is old. It's too bad to be soaked in blood."

Yang Xuetong hurried to measure, Xu Guanhai stepped forward to help, and the two finished the measurement in a short time.

And Zhou Ning also checked the location of the shattered clothes and pants, which completely coincided with the location of the slash on the deceased's skeleton, which means that the deceased was attacked when he was fully clothed.

According to the previous analysis, the deceased was 18-20 years old, with a height of 176-178 cm, slightly lower weight, and a thinner body. However, at this age, his explosive power and reaction speed were the strongest. The deceased's phalanx, ulna, radius, humerus None resisted injury.

Should not be!

Zhou Ning closed his eyes slightly, and the black image of the murderer and the deceased appeared in front of his eyes. According to the position of the cut on the deceased, it moved suddenly like a small animation.

The neck of the deceased was cut three times with an axe, and neither of them was fatal. He could dodge, resist, or react, but he didn't. It was as if he was lying there obediently, waiting for the murderer to cut him.

Moreover, the most important point is that the murderer's strength was not strong. There were multiple blow marks on the fractured surface of the tibia and fibula, especially on the face of the ankle bone. As for the arm, it was only cut off from the shoulder joint.

Zhou Ning opened his eyes and turned to look at Xu Guanhai beside him. Xu Guanhai was startled by such a sudden movement, and caught the reading glasses that fell.

"What's the matter, Director Zhou?"

"Xu Forensic Doctor, when you sent it for inspection, you sent fragments of clothes, right? Since the DNA can be extracted, have you done a poison test?"

Xu Guanhai shook his head.

"The DNA Inspection Section of the City Bureau also tossed and tossed three or four times before extracting it."

Zhou Ning nodded slightly, Yang Xuetong came over at this time, handed Zhou Ning the measurement results, glanced at the data, Zhou Ning narrowed his eyes slightly.

"It seems that the weight of the deceased is slightly higher than what I calculated. He is of a very lean type, with a weight between 130-140 catties."

Zhou Ning paused, took out his mobile phone, and dialed Cui Lili's number.

"Director Zhou, do you have another work arrangement?"

Zhou Ning was a little embarrassed. After all, it was already ten past five at this point, so he was supposed to be off work.

"Sister Cui, I have something to ask you. On February 2, Rudong City sent a blood-stained cloth for inspection. DNA needs to be extracted. Forensic doctor Xu said that you did it three or four times before extracting DNA. , I would like to ask, can these old bloodstains be tested for toxic reactions?"

The sound of typing on the computer keyboard came from the other side of the phone. Cui Lili seemed to be looking for records, and she said after a while:
"I found it. The sample sent for inspection is a piece of cloth with a size of 5*5 centimeters. The blood sample that can be collected is too small. If the amount is large, you can try to conduct toxicological analysis, but do you have directions? If you have directions, this speed Can be faster too!"

"Poison drugs that can make people lose consciousness quickly in a short period of time are easy to buy and easily available in society."

"Your range is too big!"

Zhou Ning smiled. In fact, he thought of a few, but this could easily affect the direction of the inspection.

"Big Sister Cui, I'll send someone to send more blood-stained cloth in a while. Please arrange someone to work overtime to make it."

"alright."

Hanging up the phone, Zhou Ning looked at the pieces of clothing on the table.

"Da Zhao put the two trouser legs together, and asked Director Xu to send the things to the inspection department of the technical department quickly."

Da Zhao hurriedly packed his things and marked the relevant content on the bag as he walked, Xu Guanhai was a little excited.

"The clothes are already damaged like this. It looks like they are quite old. Can we still extract the poison inside?"

Zhou Ning nodded.

"A new batch of equipment from the laboratory, but the premise is that there is a sufficient sample size. After a few more attempts, you may be able to find traces of residues. It depends on your luck."

Several people were silent, it was true, the deceased had been boned, and all that remained was the blood on the clothes, and there was no information about the deceased at all on all the relics, the identity of the deceased could not be found, and nothing else could be said. It was in vain.

Zhou Ning returned to the table where the deceased's skeleton was placed, leaned down slightly, and faced the mutilated skull, which was severely damaged on the face and face.

From the position of the left eye socket to the left lower jaw, there are incomplete teeth, and Zhou Ning turned his skull to observe carefully. He looked up to find Xiao Qu's figure, but he didn't see anyone after looking around.

"Where's Xiaoqu?"

Sun Gaotie pointed to the door.

"Teacher Qu has been calling outside, but has not come in. Shall I call?"

Zhou Ning didn't say anything, and went out by himself. Xiao Qu saw Zhou Ning hung up the phone in a hurry, and hurried to Zhou Ning's side.

"Looking for me?"

Zhou Ning nodded.

"The deceased's skull is incomplete, can the software analyze what's left of him?"

Xiaoqu shook his head.

"Just now I was talking to Dr. Lu about this issue. Before the software analysis and scanning, the premise is that the integrity of the skull should be about 90%, so that fuzzy search can be performed, the collection points are not enough, and the restoration result is not ideal, so I just Abandoned this fuzzy search part.

I discussed with Dr. Lu that we will adjust the software tomorrow, try to restore part of it, and use the fuzzy search function, but this will take time and cannot be completed in a day or two. "

Zhou Ning nodded, he understood Xiao Qu, Xiao Qu and the others are scientific researchers, they hope to use data and test results to speak for everything they do, but Zhou Ning's work is not an experiment, he needs to extract useful information from the many leftover information.

"Understood, I'll call Teacher Xia."

Zhou Ning walked to the corner of the corridor and dialed Xia Momo's cell phone. When the ringing was about to end, Xia Momo connected the phone. There was a slight panting sound from the other end of the phone, and Zhou Ning was taken aback.

"Hello, Teacher Xia?"

"What's the matter, Director Zhou?"

"If it's inconvenient for you, I'll call you later."

"Tell me, I'm moving something, and I've put it down now."

Zhou Ning reacted. In Huining Province, where Xia Momo was temporarily sent, she was not there when Xia's family moved. Maybe she went back to pack her things and move to a new home.

Thinking of this, Zhou Ning didn't bother anymore, and said quickly:
"Well, the two students you brought, can Dr. Lu and the others arrange for others to take them first? I have a deceased person's skull here. The defect is very serious. The left side of the face is basically missing, and the broken bones can't be found. Now, I want to use the previous method to restore it manually, if possible, I will send someone to pick you up."

Momo Xia thought about it.

"Have someone come pick me up from Qin University's neighborhood in half an hour. I need to prepare some things and go to the laboratory. After all, I don't have materials at home. Are the skulls you're talking about fake or real?"

Zhou Ning thought of this when he patted his head.

"There are only real skulls. I haven't found a place where I can do 3D printing. The laboratory of Qin University can make it. I will ask Xiaoqu to collect data and send it to you later."

Momo Xia smiled.

"I see that you have been influenced by Bureau Xu, and your temper has become so impatient. Don't ask someone to pick me up. Let Xiaoqu send the data later. I will ask someone to prepare it, and then print it. I guess It will take some time, and I'll go there as soon as I'm done."

After hanging up the phone, Xiao Qu has already rushed in to scan various data. After all, 3D printing technology is now in the experimental stage, and all data must be very accurate, otherwise it is easy to make mistakes.

Before, Zhou Ning copied the skull with an inverted mold, but this method is not suitable for the deceased. After all, the skull of the deceased is very fragile now, and it can fall apart at any time when touched with a little force.

(End of this chapter)