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Companion in the underworld ¡¤ 7

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    I lowered my head and glanced at the report. After clearing my thoughts, I said, "I extracted three types of traces at the scene: pry marks on the door, glove prints and shoe prints. According to Ye Qian's feedback, the pry marks are basically  It can be ruled out, then the only ones left are glove prints and shoe prints. Let me talk about glove prints first."

    "All the gloves at the scene were imprinted with linear scratch marks. I inferred that the gloves worn by the suspect were made of a very special material. Based on the measurement results of the line marks, I can basically conclude that he was killing someone.  Wearing anti-cut gloves."

    "Are they police cut-resistant gloves?" Cut-resistant gloves, as the name suggests, are gloves that prevent cuts. They are included in our police equipment, so Ye Qian had such a question.

    ¡°The main components of this kind of gloves are high-strength high-modulus polyethylene fiber, coated glass fiber, spandex or steel wire. However, there are many types of anti-cut gloves on the market, and the specific ingredients depend on the ingredients.¡± Lao Xian pushed up his glasses and added.

    "Brother Xian is right. I had previously thought they were police anti-cut gloves. Later, after comparison and inspection, I found that the lines and traces formed by the gloves worn by the suspect were very irregular, which means that the gloves he wore were of good quality.  The anti-cutting nets are not very fine, and the arrangement is not neat. They should be defective products produced by small workshops. Such defective products are sold everywhere on Taobao, and they only cost tens of yuan a pair, and they have no directionality."

    "It's not that it's not targeted at all. We can infer the suspect's motive for committing the crime."

    "Brother Ming, what do you mean?"

    "While investigating the scene, I carefully observed the distribution of blood stains on the scene, and there was no trace of blood stains."

    As the saying goes, laymen only watch the excitement, while insiders watch the door. While Ye Qian was still blinking her eyes and waiting for Ming Ge to explain, the rest of us almost all knew the purpose of Ming Ge's words.

    The cause of death of the deceased was a carotid artery cut with a sharp instrument. During the murder process, the suspect's blood would definitely cause blood to splash everywhere due to the blood pressure in the arteries.  When blood splashes in the air, the blood volume is large at short distances and small at long distances. A scattered blood pattern will be formed on the splashed object.  If an object is removed from this scattering pattern, the blood stained on the object will also be removed, which will cause a blank space where the blood stains should be. We call this blood pattern irregular.  The continuous situation is the whitening phenomenon of blood.

    According to the investigation, we learned that the deceased had won 150,000 yuan in cash at the casino two hours before he was killed. Therefore, the suspect¡¯s motive for committing the crime can be divided into two types. The first is focused on the 150,000 yuan in cash, and the second is focused on the 150,000 yuan in cash.  The two are directly aimed at this human life.

    ?????????????????????????????????????? The deceased was a gambler, and his desire for money was much stronger than the average person. If he took the 150,000 yuan in cash home, he would definitely hold it tightly in his hands.  He is not left-handed, and his power hand is his right hand. When he got home, he should have held the key in his right hand to open the door, and the plastic bag containing the cash should have been held in his left hand. Zhao Heizi's fatal injury happened to be on the left side, so the suspect was  In the process of killing, there will definitely be a lot of blood stains on the plastic bag.  If the suspect took away the 150,000 yuan in cash after committing the crime, the blood stains at the scene would definitely be exposed. From this point alone, we can conclude that the deceased did not take the money home that night, but  The suspect's initial motive for committing the crime was likely to be murder rather than property theft.

    "I've seen the surveillance, and the deceased was indeed empty-handed when he entered the house." Fat Lei's words directly turned the hypothesis into an objective fact.

    Brother Ming nodded: "As far as the current situation is concerned, the suspect committed the crime very carefully. He was afraid that the deceased would injure himself through excessive resistance during the murder, so he chose to wear anti-cut gloves. This was what he did for the murder.  Prepare."

    "We all know that the permeability of leather clothing is very poor. The suspect was wearing leather clothing. After the blood splashed on it, it was easy to wipe it off with a towel. This was his preparation for fleeing the scene."

    "In addition, let's take a look at the tool used by the suspect to commit the crime - the kitchen knife in the deceased's home."

    "Is there any truth in this?" I muttered in my heart.

    "It is early spring now. Although the clothes are much lighter than in winter, some elderly people still wear relatively thick clothes. When the deceased was killed, he was wearing four pieces of clothes. In this case, if you choose  Stabbing with a dagger may not necessarily kill the deceased. Moreover, we have concluded that the suspect killed the deceased the moment he entered the house. To accurately grasp this time point, the only way to start is from the carotid artery.  .According to our dressing habits, unless we wear a scarf, no matter how thick our upper body is, our neck is usually exposed. Using a kitchen knife to cut the neck can basically kill you with one knife. But the kitchen knife carries?Convenient, the suspect chose to obtain materials locally.  From these points, it is not difficult to analyze that the murderer made thorough and meticulous preparations before committing the crime. In other words, his original motive was more inclined to murder.  "Brother Ming made a perfect analysis.

    ¡°If this is the case, then there must be some kind of hatred between the suspect and the deceased, and it is very likely that an acquaintance committed the crime!¡±

    "I agree with Ye Qian's view, because I still have something to discover."

    "Okay, Xiaolong, go on."

    "The deceased lived on the 29th floor of a high-rise building, which was impossible to climb. The total height of this building is 33 floors. The top floor is sealed, and there is no possibility of hanging from the roof to enter the room. The suspect entered the room.  The only way to enter is through the door. I carefully observed the lock cylinder of the door, and there are no signs of prying, so I suspect that the suspect entered through the door softly."

    "Soft entry?"

    "Yes, this is an academic term. Soft entry is actually a general term for non-violent entry into the room, which usually includes shouting, knocking, waiting, following, or using a key to open the door. We now know that the suspect entered the room first to ambush  The deceased, the only way he could enter was with a key. Let¡¯s think about it, how could the suspect have the key to the deceased¡¯s home?¡±

    "You are saying that the relationship between the suspect and the deceased is very close - is she the suspect who killed the deceased?" Ye Qian pointed to the middle-aged woman in the photo and said.

    "The suspect is not her!" I shook my head.

    "Not her?"

    "Yes, you will know after I analyze the shoe prints." (Remember the website address: www.hlnovel.com
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