Chapter 289 Remaining in the nails

Zhou Ning turned around and saw Da Zhao holding a bag of physical evidence and running over quickly.

When he ran closer, Zhou Ning stared at the physical evidence bag and found that something was black inside, which seemed to be bloodstains, but this thing had several prominent parts and a hole on it. After careful observation, Zhou Ning suddenly raised his head.

"Latex gloves? Where did you find them?"

Da Zhao pointed to a huge bucket beside the west wall of the yard and said:

"I followed my footprints and looked south and found two worn half-waste oil barrels here, with a lot of firewood and branches inserted into them. I took out the firewood and branches and saw the broken latex glove below. There was a cut at the base of the glove's little finger and a ball of paper. I guess it was bleeding and I put it on."

Zhou Ning shook the latex gloves, which were unfolded inside. Sure enough, the base of his little finger was cut, but it was all stained with black blood.

"It's great. Have you seen if the person who sent the test left? Come back and take this and send it directly to the test. Even if there is no blood on the cut position, there will be sweat stains and dander on the inside of the latex gloves. If you are lucky, you can find the murderer's DNA and let Sister Cui carefully sample and compare it."

Big Zhao laughed.

"I've called the phone a long time ago. Xiaobai has already walked back. I will call Sister Cui in a while, but I remember that the dagger inserted behind the deceased had a handguard, so how could he cut the gloves?"

Zhou Ning found the picture of the murder weapon and looked carefully.

"There are indeed hands guards, but the width is less than one centimeter. If the force of the lower piercing is too strong and cannot stop the hand from sliding down, or the hand guard is not smooth, it may cut the gloves. If blood stains can be detected, this evidence will be perfect."

Xu Dayuan waved his hand.

"Stop talking nonsense, go back and have a meal first, and then have a second autopsy."

An hour later, everyone returned to the Hai'an Criminal Police Team.

After a simple meal, Zhou Ning brought people to the forensic anatomy room. The hardware conditions in Hai'an City were not as good as Qidong and Rudong City. Although it was also a working area set up in the criminal police team, the space was very tight and there was no recording equipment.

In the morning, Liu Yongxin had asked someone to install the scanning equipment and connect the system software. The LED light that Zhou Ning used to be installed and placed on one side.

Bai Hua asked a lot of questions and was very curious about such new equipment. Zhou Ning did not hide his own secrets and explained the application methods of software in dissection. After all, the municipal bureau organized the cleanup of backlog cases, and another focus was to promote the application of software to improve the detection capabilities of various branches and counties and municipal bureaus.

The child's corpse was first sent. The corpse was preserved in good condition. There was no large-scale corruption caused by repeated freezing. Zhou Ning surrounded the corpse and observed it carefully from head to toe.

Zhu Xingxing cooperated with Xia Momo to X-ray the corpse. From the operation of the machine to the use of the picture, Xia Momo whispered to Bai Hua.

Zhou Ning on the other side compared the autopsy report and found that Bai Hua's autopsy was very detailed, and the boy's perianal examination was not spared. DNA collection was also performed on the mouth, nose and neck, but no special discovery was found. However, several fibers were found in the deceased's bronchus.

"Doctor Bai, do you think the deceased Wang Jiahan was blocked by a soft knitted fabric like a pillow, causing mechanical suffocation, and then thrown into the water of the pickle jar?"

Bai Hua nodded.

"When we were inspecting the site, we found a plush pillow of 60 cm in diameter, and the filled fibers were extracted from it, which were consistent with the fibers found in the bronchial of the deceased. A light yellow liquid residue was found on the plush pillow. After DNA comparison, it belonged to the deceased Wang Jiahan."

Zhou Ning nodded, Bai Hua's examination was still very careful. It was rare for ordinary people to find fibers in the bronchials to be so meticulous.

Seeing the inspection of nail extract attached to the back, Zhou Ning took a look and found that the deceased's nails had been cut off against the edge, but nothing was effectively discovered on this.

Zhu Xingxing and the others were all around. It was strange to see Zhou Ning not taking any action to dissect it for a long time, but no one interrupted Zhou Ning's observation.

When he saw Wang Jiahan's toes, Zhou Ning waved his hand to Zhu Xingxing behind him. Zhu Xingxing quickly moved the LED light and grabbed the rocking arm. Zhou Ning approached the deceased's toenails, and there seemed to be some residue in the crack of the nail on the second toe of the left foot.

Da Zhao's eyes were very effective, and he also saw the residue, so he quickly held the camera and came close. Bai Hua hurriedly surrounded him. Zhou Ning used elbow tweezers to gently scrape it, extracting a little dark brown substance, and there seemed to be an extremely tiny hair inside.

Zhu Xingxing handed over the collection box, and Zhou Ning threw the tweezers directly to her, then picked up one and checked the other toes, but this time he found nothing. Zhou Ning cut all the toenails off the edges and kept the samples.

Bai Hua was a little embarrassed. Looking at the extract found, he couldn't tell for a while.

"Is this blood?"

Zhou Ning shook his head.

"It looks like a skin residue. The incident occurred in summer. The human body metabolizes quickly. Many people take a shower every day, but the skin is not cleaned thoroughly. Please leave a sample for inspection. You will know what it is after the test."

After saying that, he returned to the side of the anatomy bed and signaled Da Zhao to start recording the video. Zhou Ning carefully examined all the organs that had been dissected and various states.

Bai Hua looked at his movements and listened to his analysis and judgment, and completely lost his contempt at the case analysis meeting.

After doing all this, Zhou Ning let go, Zhu Xingxing quickly took over and cleaned and sewed. After everything was finished, Da Zhao turned off the recording system.

Zhou Ning then said:

"The deceased is only two years old, and the reaction is different from that of an adult. When he is awakened or discomfort, his subconscious reaction is to use both hands and feet. It is August. Even if he sleeps with a thin quilt, he is likely to stomp on the quilt. So mark these samples and explain the extraction requirements to Sister Cui."

As he was talking, He Dongmei's body was sent. Zhou Ning walked over and found that He Dongmei looked from the front, but there was an extremely small wound in the middle of the third and fourth ribs. It seemed that the dagger penetrated very deeply and directly penetrated his body.

"The murder weapon is here, or is it stored in the physical evidence room?"

"I'm going to have a second autopsy here. I've got someone to send the physical evidence here, right here."

As he said that, Bai Hua walked to one side and took a bag of evidence. He could see the shape of the dagger inside without opening it.

Zhou Ning took advantage of the gap and looked at Bai Hua's autopsy report. As expected, like the other deceased, the dissections of this were very careful, and there was a trace of congestion behind it, which made Zhou Ning look at it twice more.

Da Zhao took it, measured it carefully and quickly gave the data.

"The total length of the dagger is 26.6 cm. The length of the handguard to the bottom of the handle is 9.2 cm. The length of the blade is 17.4 cm. The width of the blade is 4.26 cm. A single blade, and a serrated shape is set at 4.2 cm below the blade. There is a blood groove on the side of the dagger."

Zhou Ning measured the distance between the deceased's back and chest, 17.7 cm. If the deceased lie on his back and the chest is squeezed, the chest can indeed be penetrated from the front.

Under Zhou Ning's gesture, several people stepped forward and turned the deceased's body one side. At this time, the wound was exposed, and the back looked even more tragic.

"Scan first, and then we analyze it. Scan this state to see if there is any damage to the thoracic side of the third and fourth ribs."

Zhu Xingxing and the others started moving, and a three-dimensional image showed that Xia Momo enlarged the image. Sure enough, at the junction of the three and four ribs, the existence of bone cracks was only very slight.

After looking at the image, Zhou Ning closed his eyes slightly. It can be clearly seen from the image that the dagger was stabbed vertically. According to the position of the glove cut, the murderer chased the deceased behind the back, grabbed the dagger with his back hand, and stabbed him directly into the heart of the deceased after the deceased fell or was knocked down by the murderer.

However, the piercing position is too accurate. Even professionals cannot guarantee that they can directly find the middle of the three or four ribs in a state of movement, and this knife directly pierces the heart.

"The wound between the three and four sides of the deceased's chest is 1.1 cm long, which is 90 degrees perpendicular to the position where the back is pierced, and the dagger penetrates horizontally into the middle of the three and four ribs."

Big Zhao shook his fat face and said in surprise from the camera:

"Is that accurate?"

Zhou Ning did not answer, and took Zhu Xingxing and others to carefully observe the deceased's body surface, and of course turned the deceased over and found that the deceased's knees, elbows, wrists, and jaws were all scratched.

In the right kidney area behind the deceased, there was a red blood stasis, which looked a bit like a footprint, but it was very light.

"It seems that the deceased was kicked down from behind by the murderer, and then pounced on him and stabbed him to death. With such damage, the deceased instantly lost his strength and could not call for help."

Zhou Ning glanced at Liu Yongxin, who was measuring.

"The length of the shoe print is 29.5 cm. Da Zhao, take a photo and let Xiaoqu handle it. Why do I feel that I can see a little trace of the pattern."

Bai Hua walked closer and looked carefully at the mark behind the dead.

"During the autopsy before, the mark was not so clear. It was just a faint dark red area with unclear boundaries. I didn't notice any signs of kicking."

Zhou Ning smiled. He actually wanted to say this just now.

"Don't be depressed by the forensic doctor. Many times, the bruises cannot appear during the first autopsy. With the freezing of the body and the secondary thawing, these marks will become clearer. My master and others did not have such conditions before, so they dissected them in the morgue. This is their experience summary."

Liu Yongxin nodded.

"The conditions were difficult before, and I encountered everything."

The two of them made Bai Hua feel relieved, and Zhou Ning continued:

"It seems that the murderer's shoe size is between 43-44. Has Xiaoqu come?"

Xia Momo raised his hand.

"Don't look for him, I'll do it the same. Da Zhao will send it to me. I'll adjust the contrast color of the picture for you now."

Da Zhao ran over and transferred the picture to Xia Momo. Xia Momo took action on the computer, which looked like a magic trick. For a moment, the mark was adjusted to a brown with strong contrast, so the pattern became more obvious.

Da Zhao also found the shoe print photos collected from the soil. Xia Momo made the same method and put the two pictures together to compare them. Zhou Ning saw the patterns on it and nodded vigorously.

“It’s the same person.”

Limited to exemption, I will post it a little later tomorrow, so I will try my best to update it!
Chapter completed!