Criminal Investigation Notes

After that, Lin xiuran drew out his finger and continued: "if it is stabbed into the heart, the dead may die within a few minutes, and there is no time to rescue. This may be the cause of death of the dead. However, due to the lack of internal organs, we can not exclude some other causes of death, such as massive hemorrhage shock caused by abdominal organs, or the puncture of arteries by a knife in the neck, or other causes Death caused by. Besides, we can't be sure that the chest stab was made while the dead was alive just by the traces on the bones

Xu Yao added: "I don't think it is likely to be a knife in the neck. If the knife is cut in the neck, there may be a lot of spray blood stains, but we don't find a lot of blood reaction on the cut and cleaned blood clothes, which is not consistent with this point."

Lin xiuran explained: "the above is just a forensic inference. This is the main discovery of the corpse. The others are irrelevant. For example, there is no bleeding point in the back, no injury to the skull, no fracture of hyoid bone, and no other scars on the body. This corpse is extremely fragmentary. Therefore, forensic autopsy alone cannot obtain more information."

Lin xiuran finished and began to pack up the relevant pictures. After finishing, he summed up: "I'll sort out my findings for you. Judging from the condition of the corpse, the time of death of the dead is from 6:00 p.m. to 12:00 p.m. on that day. Because he was once immersed in ice water and lost important information, he could not make the time of death more specific. The suspected cause of death was a stab in the heart. I think it may be an acquaintance's crime, not a serial case. Judging from the knife edge, there should be only one person who dismembers the corpse. His strength is not very strong. He is certainly not a strong man, but he can not be very thin, at least an adult with independent behavior. The killer has a certain understanding of the human body and organs, and may have a certain medical basis. "

Lin xiuran turns 30 this year, which is the golden age of forensic medicine. He is both experienced and energetic. Calm, logical, no nonsense forensic, so that the case can be solved with half the effort. After the analysis, people have some new understanding of the case.

"Before, I had access to the monitoring route here. Although there was no complete image, it was basically certain that the deceased went home at about 8:30." Zhu Xiao gathered all kinds of clues to supplement the timeline.

Xu Yao also summarized the material evidence information: "in terms of material evidence, the previous material evidence forms have been sorted out, and director Lin found that the deceased was living together, that is, there was a person in the house. Hair results from combs and pillows were compared with DNA extracts, and the same person could be identified. There are a lot of marks inside the house. There are fingerprints all over the doorknobs, toilets and restaurants. On the knife thrown with the corpses, we also got a clear fingerprint, which is consistent with some fingerprints in the house

There are fingerprints, which is undoubtedly a good news. Song Wen asked, "where is the process of retrieving fingerprints?"

"Take care of it."

Now the second generation ID card has obtained most of the fingerprint information, but it still needs to go through an approval process. After comparing with the household registration data, we can know the identity of this person.

"There are fingerprints on the murder weapon. Can the suspect be identified?" Fu Linjiang asked.

Lao Jia nodded his head and said, "this man has disappeared since the crime. It is estimated that he is hiding. I thought this case would be very difficult. Now, we can see that the case can be solved soon."

"Show me the weapon you found." Song Wen reaches out and asks for evidence. Xu Yao hands him a bag of evidence with a bloody knife in it.

Song Wen looked up and down and put forward different views: "I think it may not be a murder weapon. According to the two notches in the ribs just now, we can get the width of the weapon, and we can also simulate the shape, so that a double-edged knife can form such a wound. This knife may just be a tool for dismembering. "

Lin xiuran took the knife, looked at it and nodded, "yes, such a knife can only form a scar on a single rib. It doesn't match the cut on the chest

"Is it possible that the murderer stabbed the dead with this knife, stabbed in the abdomen, and that knife in the chest was made up with another lethal weapon?" Fu Linjiang put forward another hypothesis.

Song Wen looked down for a moment and shook his head: "it's a little too complicated. I can't understand some places when the case is analyzed here. The corpses are all damaged like this. Is there any significance in covering up the cause of death? It is unreasonable to leave fingerprints and bloodstains on a missing weapon while dismembering at a permanent residence. The killer had been dealing with the body all day yesterday. Now that you're wearing gloves, you should clean up all traces. The murderer did not deliberately deal with the fingerprints of other rooms and left traces on the murder weapon, which is inconsistent with his usual cautious behavior

The knife appeared so coincidentally that fingerprints were everywhere in the room, but nothing was found on the main tool for dismembering and stewing corpses. However, fingerprints and bloodstains appeared on the knife that was thrown out of the body. Many of these things are illogical. So much so that some of them seem to have been left to them by the murderer.

Song Wen was silent for a moment. His eyes were sharp and he said another possibility: "this knife may have been deliberately misled by the murderer."

All of a sudden silence, in order to mislead the police? So the purpose is to frame Lin Zhenghua's cohabitant?"What do you think of Lusi?" Song Wen suddenly raised his head and asked.

"Me?" Lu Si Yu didn't notice that he was suddenly touched. He was surprised and unconsciously made a lip licking action.

Song Wen said, "it doesn't matter. You can say what you think."

Lu Si Yu looked at the book in his hand and hesitated for a moment before opening his mouth. "This case is more cruel. I think the person who dismembers the corpse has a strong psychological quality. That way of division can not exclude female suspects."

Lin xiuran nodded: "because of the same psychology, when female murderers kill women, they are less likely to abuse their breasts and officials than male killers. When a male murderer kills a man, he seldom attacks the organs of the male. In a few cases, it is often because the relationship is the enemy of love. He uses this behavior for emotional revenge or is born abnormal. "

Lu Siyu's point of view was not considered before. Song wenshun pondered on his words and suddenly realized what kind of eyebrows he had to pick. Then he turned to look at him and did not express his opinions.

Lu Siyu noticed the look of Song Wen, and then he lowered his head and began to remember something in the book.

Fu Linjiang nodded and agreed: "if it's just for the sake of killing people, there's no need to do this extra action. It may be more reasonable to grind or stew. What's more, the murderer used a lot of useless work to deal with the corpse. "

That is to say, such a step is too much to destroy the corpse. The killer didn't seem to care if someone else would get the identity of the dead. But it is deliberately hiding wounds and certain things. What is the logic?

Song Wen turned his chair and made a decision: "in any case, there has been a lot of progress in the case investigation. The cohabitant of the deceased, even if he is not the murderer, should be thoroughly investigated. His fingerprints appear on the relevant knives, indicating that he is also a relevant person. The more information he obtains, the more helpful it will be for the investigation of the case. Zhu Xiao, you should take the time to gather the information of the deceased and clarify the identity of the cohabitant. Fu Linjiang, you and Lao Jia will continue to investigate the case. Now I think it is necessary for us to meet the family members of the deceased. " He said and got up. "That's another suspect."

This is a 38 year old housewife. She is Lin Zhenghua's wife. He graduated from health school and worked as a nurse in cardiothoracic surgery for one year. At the age of 22, he married Lin Zhenghua and gave birth to a son a year later. Not long after the child was born, she quit her job and became a housewife.

In the eyes of outsiders, Lin Zhenghua lives outside and has a good income. He loves his family and keeps his family in order. His son, Lin Shang, has a good academic record and a key point all the way. This is a happy and happy family.

But in fact, in places that everyone does not know, they have their own pain.

Song Wen looks at the woman in front of her. She is about 1.6 meters tall. She is a little skinny. She is well maintained. She is not fat. She can't see her real age. She looks like a young woman in her early 30s. Now her eyes were swollen and she rubbed the corners of her clothes. Today, she was told to claim the body.

After signing a series of lists, Zhong Qing was led to the body storage of the funeral home. Lin xiuran is a professional forensic doctor. After autopsy, every corpse will be stitched, and this corpse is no exception. After the stumps are pieced together, those that can be stitched together have been treated as much as possible to make the body look less embarrassed.

The cold storage room opened not much, only exposed Lin Zhenghua's head. Zhong Qing covered his mouth, nodded, and then stepped back two steps, tears came from his eyes.

Song Wen took her out of the cold storage in the funeral parlor and sat down in the special rest room for the reception of family members. Song Wen asked Lu Siyu to pour her a cup of warm water, and then handed her the death certificate. Song Wen has seen too many corpse claim processes, and everyone's reactions are different. They are panic, unacceptable, crazy, faint, and indifferent. By comparison, this woman's response is more gentle.

"Now we are investigating the death of your husband. Can we ask you a few questions?" Song Wen and others calmed down and asked her. This is a routine investigation and one of the work of the criminal police.

Love holds the water cup in her hand. It seems that the temperature of hot water needs to give her strength. Then she straightens up and nods. Her behavior shows that she is a well-educated woman, and her words and deeds are quite restrained.

Seeing her consent, Song Wen looks at Lu Si Yu and signals him to start inquiring. This was the first time that Lu Siyu interrogated the suspect. He looked up at Zhong Qing and seemed a little nervous. He licked his lips and asked, "when was the last time you saw Lin Zhenghua?"

"About a week ago, he We don't often go home. We're basically separated, and each of us has its own way. " People are dead, now to hide those, disguise family harmony is meaningless.

"Did you know your husband was living outside with someone else?" Lu Si asked again.

Love gently nodded her head, "I know, since I gave birth to my son, he has never touched me again. He rents a house outside all the year round. Sometimes he lives outside for several days in a row. Sometimes he goes home to see his son She took a sip of water and continued, "their circle is quite chaotic. In recent years, as far as I know, there have been several changes. What's the name of the latest one... ""What is it called?"

Love tried to think, spit out a name, "what Hui. "

"Do you think any of them would want to kill your husband?"

Love shook her head.

"Is there anything unusual recently?"

Love shook his head again, then nodded as if he remembered something and said, "but he seems to be a little upset recently. He has borrowed money from me, but the reason is very vague."

"Borrow money?" Song Wenmei's head wrinkled. The couple had their own lives, so they were separated.

Love explained: "after we got married, half of his salary is to call me. He keeps the other half. Lin Zhenghua's salary is not low. In addition to the living expenses of my son and I, I also save some. Recently, he suddenly wants to borrow money from me."

Lu Si Yu continued to ask, "did you lend it to him?"

When he heard this question, he hesitated for a moment and lowered his head, like a mosquito humming: "at first, there was no, but later Call him 100000. "

100000 yuan is another key point. Will Lin Zhenghua's death be due to money? With the money in hand, it is estimated that the money is more than that. He asked Zhu Xiao to check Lin Zhenghua's income, about 500000 a year. But for the sake of money, why is there no sign of robbery in the house? The victim's mobile phone and wallet are not lost.

"Where were you and what were you doing from eight to twelve on the day of the crime?" After being embarrassed by love, Lu Si Yu did not go into the question of money, but asked other questions instead.

Fondly recalled, wringing the bag belt with his hand, "that night, my son had a cram school, I sent him to go, the time is 8:30."

"How many make-up students in the class?"

"It's a small class. There are eight people."

There are few students in the cram school. If she said she would go, she would not be able to make a fake.

"It starts at half past eight and ends at what time? What were you doing when your son was in cram school? "

"It's a two-hour English class from 8:30 to 10:30 p.m. I waited for him at the cafe nearby, and because of my frequent visits, the shop assistants there knew me

After asking about a dozen questions, Lu Siyu looked at Song Wen and asked him for his opinions. Song Wen asked Zhong Qing: "do you love Lin Zhenghua?"

Love seems to have never thought that the captain of the criminal police suddenly asked questions, and a question is such a sharp question, a pause for a moment.

Song Wen stopped the smile on her face. Her eyes were calm and her words were not surprising. She continued to ask her, "if you marry a homosexual, your life is not harmonious. Don't you want to divorce?"

When has love been asked such a question, has been put on the table, let her face red: "I I... "

Song Wen looked into her eyes, pressed her step by step, pursued her, and asked her, "don't you hate him?"

Lu Siyu glanced at Song Wen with a sharp eye. His question was still gentle, but Song Wen now pointed to the core.

When she heard the last question, love suddenly seemed like a snake was hit seven inches. The whole person became out of control. Big drops of tears came from the corner of her eyes, but she was trying to smile at the corner of her mouth. These two contradictory expressions made her face twist badly