Criminal Investigation Chronicle

It was September 1998, 9. Early in the morning, at 13:5, Zhao Lei, who was sleeping at his desk, was awakened by a phone ringing. "A homicide occurred at Yanjing Police Academy", simple and clear, Zhao Lei and his colleagues rushed to Yanjing Police Academy immediately.Four years ago, Zhao Lei graduated from the school. When a homicide occurred in his alma mater, he took the lead, and he was determined to bring the criminal to justice.

Arrived at the scene, cordoned off, colleagues and forensic doctors who surveyed the scene quickly started working, surrounded by many police school students to observe and learn from the real crime scene.

It is understood that the person who reported the case was the supervisor of the No. [-] dormitory building of the police academy, a middle-aged man in his forties, who was called Uncle Zhang by the students.

"At 5:[-] this morning, I got up and opened the door of the dormitory. After I opened the door, I saw a man lying next to the big tree. He was wearing a school uniform. I thought that some student secretly drank too much and fell asleep leaning against the tree. I wanted to come and wake him up. He, no, when he took a closer look, he saw that something had happened. The girl's clothes were disheveled and her head was covered in blood. She breathed out and was gone. The dorm manager on the opposite side, Sister Xu, also just came out, so we both called the police. "Uncle Zhang told the inquiring criminal police what happened when the deceased was found.Sister Xu also said, "I just opened the door of the dormitory, and saw Lao Zhang running towards the big tree, and came over, thinking what's the matter, so I followed to have a look, I didn't expect such a thing to happen, this girl is so pitiful , live upstairs from me, oh, what a girl."

The No. 50 dormitory building of the police academy is opposite to the No. 21 dormitory building, about 9 meters apart. The No. 13 building is a dormitory building for girls, and the No. 12 building is a dormitory building for boys. , facing the No. [-] dormitory building, so Lao Zhang could see the victim when he opened the dormitory door.After the on-site investigation, the preliminary judgment of the forensic doctor, and the identification of the students, it can be known from the collected information that the deceased was a third-year student in the Criminal Investigation Department of the police academy. His name was Zeng Qian. He was [-] years old and died around [-] am on September [-]. The cause of death was a blunt blow to the head, which caused the intracranial artery to rupture and bleed, while the victim's trousers retreated to the knee position, and he had sex before his death. The rest of the detailed results need further testing.

"What time does the dormitory door lock?" Zhao Lei asked. "The door is locked at 05 o'clock in the evening, and the door opens at 30:[-] in the morning." The dormitory supervisor replied, "Lights off at [-] o'clock." A student added.

"Why her?!" A male student who had just come downstairs ran over and shouted loudly.Zhao Lei looked at the student who wanted to rush over but was stopped by the police, a young boy about 1.8 meters tall, in his early twenties, with complex expressions on his face, including resentment, pity, disbelief, and grief, separated by a few meters , can also feel the sadness of this young student.This was the first time Zhao Lei saw Lin Chong.

Zhao Lei walked out of the cordon, looked at the student and asked, "What's your name?"

"Lin Chong. A third-year student in the Criminal Investigation Department of our school. She was in the same class as the deceased. The deceased was named Zeng Qian, 21 years old, from Langfang, Hebei, and I was a fellow student. Our high school was in the same middle school. She was introverted and didn't like to socialize with others. , the grades are mediocre, and as far as I know, I haven't had any grudges with anyone, what else do you want to ask?" As soon as Zhao Lei opened his mouth, the young man named Lin Chong burst out a series of information.

"Rush in the water?" Zhao Lei asked.

"Yu Zhongchong." Lin Chong replied

"This name has its own characteristics." Zhao Leixin said.

"Relevant personnel took them back to make notes. The two dormitory managers, the victim's roommate in the same dormitory, and that Lin Chong were all taken back. Xiao Wang, you follow Lao Xu to investigate the basic situation of the victim in the school and notify his family members to come Police station." Li Liang, the deputy captain who led the team, ordered.

At ten o'clock in the morning, the police station. "Captain Li, the results came out. A large amount of anesthetic ingredients were detected in the victim's body. It should be that the murderer sexually assaulted and killed him after being anaesthetized. The victim was torn old and was not extracted at the scene. The deceased □ □ There was a small amount of lubricating oil, which should be left by the murderer after using the condom. No abandoned condom was found at the scene. The cause of death was a blunt instrument blow to the head, which caused rupture of the intracranial artery and massive hemorrhage. The time of death was September 9 From 12:11 on September 9th to 13:12 on September [-]th, there were no signs of fighting at the scene, and the deceased had no signs of violent struggle. He was killed in a severe coma. After comparison and inspection, the murder weapon was found at the scene. Irregular stones. The fingerprints of the same person were extracted from the victim's body, hair, clothing, and the stone. The DNA analysis results have not yet come out. The first crime scene should be under the big tree. No one was extracted at the scene. Valuable shoe print."

"The statements of the two dormitory managers are consistent. They are both old employees of the police academy. Their confessions are in line with the investigation results. There is no problem. After questioning, the victim's three roommates all said that the victim was introverted and didn't like to be with others. dating, but she is a nice person. I haven’t heard of any grudges with anyone, nor have I heard that she has a boyfriend, but the victim is good-looking, and there are many boys who have a crush on her in school. According to her roommate, the victim I don’t fit in well, and I’m not sure when I’ll go back to the dormitory at night. I often go for a walk on the playground alone after evening self-study, and sometimes I go back after the lights are turned off. There is still an hour before the lights are turned off and the door is locked. The time to turn off the lights is ten o’clock in the evening. After a day of study and training, most students fell asleep within ten minutes after the lights were turned off. Many times, the victims returned to the dormitory after they were all asleep. Last night they thought the victim fell asleep after the lights were turned off. I didn’t go back until I fell asleep, and I didn’t know what happened until the morning.”

"Is there any problem with that Lin Chong?" Zhao Lei asked casually.

"It seems that there is nothing suspicious now, but he reacted violently and admitted that he had a crush on the victim."

"My poor daughter..." A middle-aged couple came in the police station. They were the parents of the victim Zeng Qian. After understanding, Zeng Qian's father was a people's teacher, and her mother was a clerk in a small company. Only this one daughter.The police took Zeng Qian's parents to the morgue. Zeng Qian's mother was crying and fell to the ground. Although his father didn't cry, his face was full of tears.

"My condolences, both of you. We will definitely catch the murderer who killed your daughter. Please cooperate with me and learn about Zeng Qian's situation." The police comforted Zeng Qian's parents who were in great grief.

After a while, Zeng Qian's parents came out of the morgue and sat down in the lobby of the police station. The police officers brought two glasses of water and told the old couple to relax.Zeng Qian's mother first introduced, "My daughter has been very obedient since she was a child, has good grades, is also beautiful, well-behaved and sensible, until..." As she spoke, Zeng's mother hesitated, "Until five years ago, when Qianqian just When I was in the second year of high school, one night after evening self-study, she went back half an hour later than usual. When she came home, her clothes were disheveled, her face was bloodstained, and one cheek was swollen. I asked her what happened It's okay, she said indifferently that she had a fight with her classmates, and then locked herself in the room, and did not go to school for the next ten days and a half months. I am also a teacher, and students often fight, but we Jia Qianqian has a good temper since she was a child, never causing trouble, and her classmates also like her very much. I find this strange. I went to her school the next day and asked her teachers and many classmates, and they all said they didn’t watch it. When Qianqian got into a fight with someone, I wondered if she was fighting outside the school with students from other schools or bad boys in society or something, but her daughter has grown up, and there are some things she doesn't want to say, and parents can't force her to ask. For a few days, she was basically in her own room and rarely came out. Her mother delivered the cooked meals to the room. After more than ten days like this, she came out with her schoolbag on her back and said to go to school. Qianqian and I Her mother thought it should be fine. Since she didn't say what happened, we didn't ask any more questions. Since we both went to school, we just pretended it was over and nothing happened. But since then, we both I found out that Qianqian has changed, she has completely changed, she has become introverted, autistic, rarely speaks, and her grades have changed from a top student to a mediocre student..." Zengfu took the conversation and said up.

"Has Zeng Qian done anything special in recent days, such as have you made any special calls? Also, does she have a boyfriend?" the policeman continued to ask.

"No, Qianqian usually calls home once a week. I just called last week, and there is nothing unusual. As far as I know, she doesn't have a boyfriend. She even said that she doesn't even have a good friend. I always feel that she, Very lonely." Zeng Qian's father replied.

"By the way, do you know Lin Chong, or has Zeng Qian mentioned Lin Chong?" Zhao Lei interjected.

"No, Qianqian seldom talked to us, and never mentioned this name. What is his relationship with Qianqian? Did he harm my daughter?" Hearing Zhao Lei's interjection, Zeng Qian's father seemed a little excited.

"That's not true, it's just that this Lin Chong is Zeng Qian's college classmate, and he studied in the same middle school as Zeng Qian in high school. I just asked casually, don't think too much about it." Zhao Lei quickly explained.

"Oh, that's right, I beg you to solve the case as soon as possible and seek justice for my daughter."

After appeasing the Zeng couple and sending them away, the bureau began to study and analyze the case.Old Xu came back with Zeng Qian’s files. Judging from the files, Zeng Qian was indeed as her parents said. Before the second year of high school, Zeng Qian had always been outstanding, with excellent grades, and the evaluation of middle school teachers was also very high, while the second year of high school was a watershed. A few days after the start of high school in September, Zeng Qian changed completely, her grades declined, and she was withdrawn and reticent.

"It's Lin Chong, let's take a look at his file. His grades are outstanding, and his performance has always been very good. Whether it is theoretical study or physical fitness shooting and fighting, he is excellent every year. The overall score is 0.2 points higher than Zhao Lei. However. I heard that the students rumored that Lin Chong had sleepwalking." Old Xu's words caught Zhao Lei's attention, and you know, when Zhao Lei graduated, he was the student with the highest comprehensive score in the Yanjing Police Academy in the past five years.

"This kid is interesting." Zhao Lei murmured to himself.

"Let's talk about it. What do you think? This case happened in the police academy. It is of a bad nature and has a very bad impact. The leaders attach great importance to it, and comrades will work harder. Zhao Lei, what do you think, as a high-achieving student who graduated from the Yanjing Police Academy .” Li Liang, the vice-captain in charge of the case, asked.

Zhao Lei pondered for a long time and said: "In my opinion, this case did not happen by accident. The murderer knew a lot about the victim. For example, he knew that the victim was introverted and out of gregarious. Even if he returned to the dormitory late, he would not attract too much attention; , the victim is very beautiful and has no boyfriend. It cannot be ruled out that someone became angry after pursuing the victim and planned the rape and murder case; the police academy has strict management, and it is difficult for non-police academy personnel to enter the school; in summary According to the report, the murderer is likely to be in the police academy, considering his male classmates, including school teachers and other staff. By the way, has anyone from the police academy left the school so far?"

"Don't worry about this. Except for a few purchasers who went out to purchase, no one else left. I also sent someone to watch over the purchasers. There is nothing abnormal. During this time, we will monitor and seal the police academy all the way, so as not to let the murderer have a chance. Take." Li Liang, the deputy captain, dispelled Zhao Lei's worries.

With the answer, Zhao Lei continued slowly, "Zeng Qian's father mentioned that Zeng Qian's personality change was when Zeng Qian was just a sophomore in high school. Combined with the file records, this time should be September 1993, but there is no specific record. Do you feel that Zeng Qian was killed today, September 9th, is it a coincidence? And what happened to Zeng Qian during this time period five years ago, which caused such a young boy in the blooming season to change his temperament? Let me first Let’s talk about this, and you continue to study. Oh, by the way, according to the existing information, Zeng Qian has never had a boyfriend, but the autopsy report indicated that she had an old sex tear.” Zhao Lei pointed to the autopsy report, marked it, and continued He took out a piece of paper and wrote on it: Obsolete tearing taciturn personality change September.