Netherworld Investigator Chapter 744: Song family’s unique learning, dialectical experience

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Huang Xiaotao called the police and took Huang Mao away. Then, the identification staff took fingerprints and fixed photos on the spot. Eighty percent of the fingerprints on the scene were yellow hair, which added a lot of difficulty to our identification.

I walked into the bedroom, opened the deceased’s QQ on the computer, looked at her friends list and added groups, this person is undoubtedly a person in the S-M circle.

However, there are limited clues on the computer. I looked around and asked Huang Xiaotao: "Have you found the deceased's cell phone?"

Huang Xiaotao shook her head.

I went to the bathroom again with Sun Bingxin. I carefully checked the ground with the pupil of the hole, but unfortunately the footprints had been stepped on by the yellow hair, and then my eyes fell on the sink on the side and squatted down to unscrew the pipe. , Let Sun Bingxin fetch a basin to continue.

Some dirt and hair accumulated in the pipe flowed out with the sewage. I searched carefully, but found nothing, and asked Sun Bingxin to get a pair of scissors, cut the pipe, and investigate the inner wall.

On the inner wall of the pipe, I actually found some blood stains. The amount is quite large. I said: "Extract it and see if it belongs to the deceased."

The on-site evidence collection process is quite complicated. Sun Bingxin and I took the corpse and the murder weapon fruit knife to go back for the examination. Huang Xiaotao stayed here temporarily. Back to the Municipal Bureau, after a long absence, I was doing an autopsy in the Guluo. I turned on the ventilator to change the air, and together with Sun Bingxin, I carried the body bag with the corpse onto the iron frame bed.

The deceased was about twenty-five years old, thin, medium-sized, and the time of death, combined with the characteristics of the corpse and the confession of yellow hair, was about forty-eight hours ago.

I opened the autopsy umbrella to examine the body of the deceased, and found no useful traces, because the deceased was touched and turned over by yellow hair after his death, and the mark of the yang has been severely damaged!

Then I used ossuary to listen to the internal organs of the deceased. There were empty sounds in the atrium of the deceased. It was due to severe ischemia, blood loss, and a certain degree of atrophy in various organs. It seems that the cause of death was indeed a cut on the wrist. .

In addition, there is no damage left by external forces, or organ disease.

I checked the fatal wound again. The cutting edge was very neat, and it felt like it was left by a sharp knife. I took the murder weapon and compared it. The wound was consistent with it, but I always felt that the cut was too deep.

One more thing, I cut my wrist with a knife, and finally it will end downward, but the wound ends upward, which makes me a little suspicious!

I subconsciously compared the thickness of the left and right hands of the deceased. Her dominant hand was the left hand, but there was a shallow trace on the left wrist. I asked Sun Bingxin to come over and take a look.

We discussed for a long time and came to a conclusion that this trace was pressed out by a sharp tool, and the shape was similar to a fruit knife.

I wondered: "This is weird. Did the deceased forget that he was left-handed? First, he put the knife on his left hand with his right hand, and then remembered that his dominant hand should be the left hand, and switched to holding the knife with his left hand to cut Right wrist?"

Sun Bing said in his heart: "So, is it murder?"

I nodded: "There is such a possibility. Huang Mao just said that the blood shed all over the floor. This makes me a little suspicious! Why do people who commit suicide by cutting their wrists sit in a bathtub filled with warm water because of the warm water. It can relieve pain and accelerate blood flow, and the body will be very cold during the process of blood loss, so warm water is needed to cover the whole body, so that suicides can pass away peacefully in sleepiness. In film and television works, suicides are often seen Sitting in the bathtub, stretching out your hands on the edge of the bathtub, it looks very beautiful. It is not like this in reality. Generally, suicides will dip their hands in the water and dye the whole tank of water into a bright red. Even if the suicide has no experience, that kind of cut The sharp pain of broken skin will also drive him to do so."

"You mean, the murderer just used the film and television to botched up the illusion of suicide?" Sun Bingxin suddenly realized.

"That's it!" I replied.

"I'm not refuting you. I think of another situation. The deceased is a girl, and all girls love to watch TV dramas. Maybe she was also influenced by TV dramas and committed suicide because she was not so'professional'?"

Sun Bingxin has always had a big brain, but the point raised this time is very realistic and I didn't consider it.

I said: "If this is possible, let's continue to test it. If this is really a murder and fake suicide, it will definitely leave other clues..."

"Okay!" Sun Bingxin immediately began to help me.

I took the head pillow and listened to the head of the deceased, and accidentally found signs of hemorrhage in the head. So I peeled off the deceased's long hair and checked it carefully, and found that there was a softer skin on the left scalp with congestion under the skin.

I stroked it with my hand, and it felt like a blunt object, but not like it.

In order to verify, I need to do a simple experiment, I said to Sun Bing heart: "I will buy two cantaloupe melons, you wait for me here."

"Hamimelon? Do an experiment?" Sun Bingxin was confused.

"Smart!" I laughed.

"Then I will take this time to send the blood sample to Technical Kobe for comparison." Sun Bingxin said.

I suddenly thought of something and shouted: "Wait! Do you remember the hair found in the last deceased? Compare that with that."

I went out. This was the first time I went to buy props in the middle of the autopsy. The main reason was that it was too late at night, and I was worried about Sun Bingxin going out alone.

I went to a nearby supermarket and bought three cantaloupe melons. The shape of the cantaloupe melon is close to the skull, and there is a layer of mesh on the surface, similar to the arachnoid membrane under the skull, which can simulate the human head well.

Wizuo will also do experiments to verify. Of course, the props we choose are more down-to-earth. In order to verify the difference between burning to death and burning corpses, the ancestor Song Ci used live pigs and dead pigs to do experiments and recorded them in " In the Record of Washing Injustices.

After returning to Kanguliao, I fixed the cantaloupe on a special shelf, and then picked up a claw hammer and smashed it on. Naturally, the force shouldn't be too much. The melon is not as hard as the skull.

After being smashed, the skin of the melon sunk in a radial shape, and some of the melon juice was flowing out, which was very similar to an ordinary skull injury.

I said to myself: "The injury of the deceased was obviously not directly hit by a blunt object. I suspect it was caused by a blunt object wrapped in a soft object. Let's try it again."

I fixed the second melon, wrapped a thick layer of cloth on the claw hammer, and squeezed it down. Due to the cloth, the force-receiving area became larger, but the "injury" was still more obvious.

Sun Bingxin asked: "Will it be rubber? Just like the soft rubber hammer used in construction, although it is soft, hitting it **** the head can cause concussion."

"Try it!"

I don’t have a rubber hammer here, so I wrapped the claw hammer tightly with a piece of tire skin, and then smashed it against the third cantaloupe. Under the action of the rubber, the hammer bounced back and the cantaloupe sank slightly, but Not too obvious.

I put down the hammer, cut the skin of the melon with a knife, and said excitedly: "Look, although the surface is not obvious, the'soft tissue' underneath has received a huge impact and it has been'swollen'. It seems that the murder weapon is just a soft Hammer."

Judging from all these doubts, this is undoubtedly murder!