Criminal Investigation Notes

At four o'clock in the morning, Lin Xiuran, who had transported the corpse back to the funeral home, had already started work. The two corpses were placed on two stainless steel dissecting tables for dissection.The entire dissection room has no windows, shadowless lighting, and two super powerful ventilation systems.

Nancheng's forensic work is ahead of the cities. There is a modern autopsy room in the city bureau, which is divided into three parts: a standardized autopsy room, a monitoring and consultation room, and a corpse storage room. It is mainly used for the dissection of difficult cadavers. However, since it is more troublesome to transport the corpse between the funeral home and the city bureau, the cause of such death is relatively certain. The corpse waiting to be buried will be processed in the autopsy room of the funeral home.

Since there were two dead, in order to save time, in addition to Lin Xiuran, there was also a young forensic doctor from the city bureau to perform an autopsy with him.Lin Xiuran is in charge of Dong Fang's body, and the other is in charge of Ma Aijing.

The forensic doctor was called Wan Zong, and his nickname was Dragon Boat Festival. He was a small forensic doctor with glasses. He graduated from the forensic medicine department for three years this year. The number of forensic doctors in Nancheng was insufficient. He had such a qualification and had been involved in cases independently.Speaking of the Dragon Boat Festival, the nickname has something to do with Lin Xiuran, because Zong sounds the same as Zong, Wan Zong’s nickname is Xiao Zongzi. Later when he reported here, he was afraid that everyone would not remember, so he mentioned his nickname and said You can also call him that.

Those few years were the popular novels of tomb robbers. Lin Xiuran frowned when he heard his nickname. Although he said that they were all feudal superstitions, others thought that our appraisal center had cheated corpses. You might as well be called Dragon Boat Festival in the future. .So this Dragon Boat Festival was called at the Municipal Bureau, and later it was called more than his real name.

The dissection room is extremely quiet, and the temperature here is much lower than outside.The dead time of the two corpses was about four hours. The dead body generally appeared within ten minutes to seven hours after death, and then gradually eased.The corpse's corpse was at the most rigid time now, lying unnaturally on the dissection table.

The Dragon Boat Festival had just sneaked over from his sleep, still a little confused, observed the appearance of the corpse and said: "It seems that there is nothing too troublesome today, it should be killed by poisoning."

Lin Xiuran reminded him: "Don't be careless, you have to test it before drawing conclusions." You must not have the idea of ​​working as a doctor. Sometimes, the simpler the case, the easier it is to miss some details.The Dragon Boat Festival is very courageous, but some people are a little sloppy. Fortunately, the previous case was simple and there were no major mistakes.

The two began to get busy and exchanged while observing. Lin Xiuran re-measured the temperature of the corpse: "The time of death is consistent with the rectal temperature, between 12 o'clock and 1 a.m." According to the current temperature, every hour, The corpse dropped by approximately 1°C.Compared with Dong Fang, Ma Aijing's rectal temperature is slightly higher.

While communicating, the two filled out various inspections on the form. This step is to check the corpse form, and all traces on the corpse must be checked.The two people walked around the dissection platform, and the Dragon Boat Festival said: "There is no trauma outside the body. The deceased's pupils diminished, the mucous membranes were congested, and the plaques were bright red, which are obvious characteristics of poisoning."

After Lin Xiuran inspected the appearance of the corpse, he began to cut with the knife. The skin and flesh were neatly separated. A capital Y was drawn on the corpse. A more intense bitter almond smell appeared in the air. Check from the top. At first, it gradually reached the digestive glands.

"Muscles and blood are bright red. Digestive tract edema, congestion...Because the deceased had vomited, there are not too many stomach contents, there are black chocolate particles." With Lin Xiuran's skillful movements, stomach contents and heart blood were quickly extracted Finished, full of effort, put it in the test tube, waiting for the test.

The Dragon Boat Festival on the other side also progressed very smoothly. The body was quickly opened and the internal organs were taken out and weighed.

Time passed quickly, and the two people were busy for nearly two hours. The Dragon Boat Festival was completed first. They put down the dissection tools and said: "This is done. It is basically a poisoning. If there is no problem, I am going to stitch here. Up."

"Wait, I'll take a look." Lin Xiuran put down his work, walked over, and looked at Ma Aijing's body.He is the person in charge of this appraisal center. He is required to sign all inspection reports and is also responsible for the dead.

Lin Xiuran looked at the corpse for a few seconds, her expression became serious, and she frowned deeply in thought. Now Lin Xiuran is a little sleep deprived and extremely exhausted. As long as he closes his eyes, the girl's corpse and the quilt are tightly entangled in front of him. The picture together, somehow lingering.It seems to imply something to him...

I don’t know if it’s affected by the high-power refrigerator next door. The temperature here is much lower than outside. The internal organs of the two girls’ corpses on the dissection table were taken out and lying side by side. The skin was illuminated by a white shadowless lamp. There is a sigh of light.

The funeral home in Nancheng City is located in the suburbs to the north of the city. It is very atmospheric, with a large area and sparsely populated area. In this dark night, apart from the staff on duty, there are only two of them. There are more dead than living.I didn't feel that when I was working before, this quietness made the courageous Dragon Boat Festival a little unbearable.He looked at Lin Xiuran sternly, with a diffidence, and carefully compared the corpse in front of him. He still couldn't see the clues, and asked in a low voice, "Aren't these all typical characteristics of blue gas poisoning?"

"This corpse is not right." Lin Xiuran did not quickly conclude, but walked to Dong Fang's corpse and checked it again. Then he opened the deceased's eyelids and stared at the deceased's eyes for a moment.Then he let go of his hands before he continued, "There is nothing wrong with poisoning, but this corpse is obviously slightly different from mine. For example, poisoning will not cause blood spots on the eyelids and cheeks..."

Lin Xiuran stretched out a white lamp while talking. Under the light, some bright red blood spots on Ma Aijing's corpse could be seen clearly. These marks were not clear when she first died. As time goes by , Has become more and more obvious.

During the Dragon Boat Festival, the red dots scattered on the face were very small, and it was not easy to find if you didn't observe carefully, it seemed that the capillaries on the face had burst for some reason.Looking so close, it was a little weird, as if someone had sprinkled a handful of cinnabar on the face of the corpse.

"Also, she painted her nails to cover up the cyanosis of her fingers." Lin Xiuran pointed to the tip of Ma Aijing's fingers again, where the color was purple.He poured some chemicals on the cotton wool and wiped away Ma Aijing's remaining nail polish. The girl's fingertips were bluish, the nail color was abnormal, and the signs of cyanosis were more obvious.

"There are others..." Lin Xiuran pointed to some spots on the internal organs of the dead.

As clues appeared one by one, a frightening truth gradually surfaced, Lin Xiuran felt that his heart was shrinking leisurely, this murderer was too frantic.

"Tadiao's spot..." I recognized it at the Dragon Boat Festival. Tadiao's spot refers to some spotted bleeding under the mucous membrane, which is one of the characteristics of suffocation death. "So...the real cause of death is...suffocation?"

Lin Xiuran opened the deceased's mouth and observed the deceased's teeth. The neck of the teeth showed a pink color.This phenomenon has a romantic name, which is called Rose Tooth.

Seeing this, Lin Xiuran looked solemnly and concluded, "Yes, this victim was smothered to death by the quilt." Then he straightened up and added: "The deceased had already begun to poison when he died, so part of the corpse was characterized by poisoning. For example, the corpse spots are bright red, so the characteristics of suffocation and death are ignored by you."

Because it is suffocation and it is in the terminal stage of poisoning, it does not have some characteristics of mechanical asphyxia, such as hyoid bone fracture, which is easy to be confused with poisoning.

This is the result of careful consideration and fear. The two victims died together at almost the same time, but the cause of death was completely different.Perhaps something changed during the poisoning process, and the murderer couldn't even wait for Ma Aijing's poisonous death.But she must let her die as soon as possible, poisoning, suffocating, this is extremely painful, it is unimaginable what kind of process this girl went through before death.

"I didn't watch it carefully." Dragon Boat Festival faced his mistake at this time. The reason why he made a wrong judgment was because the corpse had too obvious signs of poisoning. As soon as he came up, he had a subjective assumption that he must have been poisoned to death. Without considering other possibilities, now that Lin Xiuran pointed out, Dragon Boat Festival realized that he had almost made a big mistake, and was startled to sweat, "Director Lin, does this cause of death have a big impact on the case?"

Lin Xiuran glanced at him: "Naturally it is very big, and there are no signs of breaking into the dormitory. In this way, the murderer is confined in the dormitory, and this murderer is too cruel." He said, looking towards lying down. Two corpses on the dissecting stage, the two girls' eyes were round and staring.

At the scene, Ma Aijing’s body was entangled with the quilt. At first, they thought it was because the poisoning was more painful, so the victim held on to the quilt. Now they think of it, that quilt should be the murder weapon, and the murderer had poisoned her. At that time, afraid of her yelling, someone sat directly on her and pressed her with his hands. The quilt covered her head and suffocated her in the quilt. This caused her to keep holding on to the quilt. , Lethal can not be separated.It was precisely this action she took when she was dying that helped Lin Xiuran determine the real cause of her death and further locked down the murderer. The murderer was in the 108 bedroom.

At 5:30 in the morning, the criminal police's questioning continued and Bai Xiaoxiao was sent away, and the people in front of Song Wen and Lu Siyu were replaced by Deng Jia.It was this girl who found Guo Wei who had fallen poisonously at the door, and now her face was still pale, as if she was still immersed in the nightmare.

Deng Jia was one year older than Bai Xiaoxiao. At the beginning, she just shook her head and said she didn’t know, and said she was not familiar with the bedroom next door. After halfway through the conversation, Lu Siyu went out to pour some hot water for her, and Deng Jia gradually relaxed. Come down.

"There are 30 students in their civil engineering class, most of them are boys, and only four of them are girls. Dong Fang is the richest and generous, and Ma Aijing is the best-looking and was selected as the department flower..."

"Then what Dong Fang did to Ma Aijing, do you know?"

"It’s very bad for her. I saw it once. Dong Fang used a joking tone to say that Ma Aijing is a flatterer, a small follower, picking up things she doesn’t want, but I think Ma Aijing should have heard it in her heart. I went, she was a bit resentful."

"Do you know all about Dong Fang bullying Guo Wei?"

Deng Jia hesitated, nodded and shook her head, and then said timidly: "Bai Xiaoxiao and Guo Wei are familiar with each other. I have a normal relationship with her."

Song Wen understood it, even if he knew it, ordinary girls like them didn't dare to care about it.They asked Deng Jia a few more questions, basically the same as Bai Xiaoxiao's description.

The sky was getting bright outside, the sun poured in through the curtains that were not well drawn, the dark clouds dispersed, and the rain did not come down in the end.

Song Wen and Lu Siyu looked at each other and prepared to finish. He routinely asked: "We are almost asking what we want to know. Do you have anything else to add?"

Deng Jia bit her lip and seemed to have made a lot of determination, "Half a month ago, very late, about 11:30 in the evening, I left the things in the study room and went to pick them up at night. I saw Ma Aijing coming in from the outside with a middle-aged man from a distance. That person seemed to be a professor in their civil engineering department..."

"Did you see clearly at the time?" Song Wenjia asked. According to Deng Jia's description, it was very late and far away, so it was easy to misunderstand.

"It should be Ma Aijing..." Deng Jia recalled, "I recognize her umbrella. She has a very unique-looking colorful umbrella printed with Van Gogh's sunflowers, which is particularly conspicuous on rainy nights."

Song Wen nodded, "Thank you for providing clues. We will find out these things later." He sent Deng Jia out.

Fu Linjiang's questioning was also over, and several criminal police officers gathered the information together.

Song Wen briefly talked about their results here, and raised his head and asked Fu Linjiang, "How about you? Is there any result?"

"We asked their head teacher and several teachers who teach, but they all asked three questions. Their head teacher became very excited and said that it was definitely not Guo Wei or Lin Wanwan. Her own students knew about it. They are all good children. When I asked her if Guo Wei was bullied and if she knew, she changed her words and said that she didn't know or did not understand." Fu Linjiang sighed, "It's just a 26-year-old female teacher who just graduated from graduate school. It’s not much older than a student."

Song Wen nodded. He did not expect to find more clues over there. The gap of a few years is like an insurmountable gap. One is an adult who has entered society, and the other is on campus. child.

If a class in a university compares students to a flock of sheep, the teacher is like a shepherd dog. They only care about which sheep fall out of the team, but they are always slow and indifferent to the fight in the flock.

Song Wen turned his head and asked Lu Siyu, "What do you think of this?"

Lu Siyu didn't take precautions and was clicked again. He thought about it and said: "The exact source of the poison and the person who poisoned it still has no idea. The relationship between the characters seems simple, but I always feel that something is wrong."

Fu Linjiang interjected: "Yes, civil engineering students, who are not in the chemistry department, how can they get this kind of controlled highly toxic materials? Do they know the chemistry students and be able to take out the poison from the laboratory?"

Song Wendao: "There are all kinds of drug control methods in universities. If you want to take out poisons from them, it is difficult to leave no traces. When you turn back, you can remove the monitoring and ask the teacher here." In several similar cases in China, There have been cases of taking out poisons from chemical laboratories, and after those cases, laboratories in universities everywhere have strengthened their control.

When the conversation came to this point, Song Wen's cell phone rang. He saw Lin Xiuran's call, and raised his hand to answer, "Hey, Lao Lin? How's the situation?"

After Song Wen answered the question for two minutes, he turned his head and said to the others, "Part of the autopsy results came out. Dong Fang was poisoned to death, and Ma Aijing was suffocated. The main ingredient in the poison is sodium cyanide. In addition, a small amount of anesthetic was found in their bodies."

The expression on Lu Siyu's face changed slightly, his eyebrows stretched out suddenly, and the doubts that seemed to have been haunting him were finally confirmed, and then he bowed his head and said: "Then this suspect is in Guo Xu and Lin Wanwan. Is it in between?"