Department of Psychology Forensic

Chapter 3 The murderer is...

"Have all three murder cases been closed?" Zhou Zheng frowned tightly, and he suddenly realized the problem.

This is not a normal crime!

The criminal behavior can be reflected through the crime scene, and then the criminal psychology can be analyzed from the criminal behavior, which is the process of criminal psychology reasoning.

Hearing this now, even if he hadn't seen the files, Zhou Zheng was almost sure that the murderer of this series of serial murders had an unusual psychological problem.

"Yes."

Qin Wangde nodded, his face was serious, and after a moment of silence, he continued: "Let's go to the bureau to see the details of the case. Three murders occurred in a row in more than half a month. It's still such a perverted and difficult case. The higher authorities require us to deal with it as soon as possible." Solve the case."

"clear."

Zhou Zheng looked forward through the windshield of the car, his eyes seemed to be staring at the traffic, and he began to think quickly.

Qin Wangde didn't speak so clearly, but he could still feel the invisible oppression.

Before he knew it, the destination arrived, and Qin Wangde parked the car in the parking lot in the city bureau yard.

"follow me."

Qin Wangde got out of the car quickly, without saying anything, and led Zhou Zheng directly to the gate of the Municipal Bureau.

Seeing that it was Qin Wangde who came, the guard immediately put down his cell phone and sat up straight. He looked at Zhou Zheng who was following behind Qin Wangde, and did not stop him.

Under the leadership of Qin Wangde, the two went all the way to the second floor, and they could hear the sound of heated discussions in the corridor.

As they got closer to the office at the end of the corridor, the voices of the discussion became louder, until when they reached the door, Qin Wangde directly pushed open the door of the office.

In an instant, the discussion stopped abruptly, and all eyes in the office were focused on Qin Wangde.

"Xia Yan, come out."

Qin Wangde's voice was serious, like the head teacher caught a student who secretly did bad things in school, his tone was full of majesty.

"coming."

The man trotted out quickly, and when he walked out of the office, he came into Zhou Zheng's sight.

Zhou Zheng silently looked at the man named Xia Yan in front of him. He was about the same age as him. He looked 26 or 1.9 years old. His short hair looked very capable, and his regular facial features gave him a sense of decency. He was about [-] meters tall. , wearing navy blue trousers and a light blue T-shirt with short sleeves, his face looks quite tired, and he can feel the smell of smoke from the other party from a distance. He should be an old smoker. Already marinated.

"Xia Yan, let me introduce you. His name is Zhou Zheng, the newest intern forensic doctor of our city bureau. I will temporarily transfer him to the serious crime team to help you solve the case." Qin Wangde said.

"Qin Bureau, aren't you joking?" Xia Yan twitched the corner of his mouth, glanced at Zhou Zheng, then turned his gaze back to Qin Wangde, and said, "What we want now is not a forensic doctor." !"

"He is a student of Lao Fan." Qin Wangde said in a deep voice.

"Old Fan?" Xia Yan was stunned for a moment, then suddenly realized: "Professor Fan?"

He still knew about Professor Fan, and helped the city bureau solve many strange cases, and the legend of Professor Fan was still circulating in the criminal police team.

Qin Wangde's deep eyes stared at Xia Yan for a few seconds, he didn't speak, his whole body exuded an invisible sense of oppression.

"Zhou Zheng, let me introduce you. His name is Xia Yan, the captain of the criminal police team. You will follow him during this time." After introducing Zhou Zheng, Qin Wangde gave Xia Yan a hard look, left without saying a word , "I leave it to you, three days, and solve the case for me!"

"How can I break it in three days..." Xia Yan looked at Qin Wangde's back, and muttered in a low voice. He controlled the volume, not daring to let Qin Wangde hear it. Then he looked at Zhou Zheng, waved and said, "Zhou Zheng Right, can you really solve the case?"

"I have to look at the file first." Zhou Zheng was noncommittal. Now he was interested in this case, and he had some thoughts in his heart, but it was not particularly clear, and he needed more information about the case.

"Okay." Xia Yan nodded, walked towards the office, and said, "There will be a meeting at [-] o'clock in the afternoon. If you have any thoughts, you can tell them. Before that, don't disturb everyone."

"Okay." Zhou Zheng calculated the time silently in his mind. The time he saw Wang Suansuan was around 10:11 in the morning, and then he was brought here by Bureau Qin under the recommendation of Professor Fan. It should be around 12:2 now. It won't be until [-] o'clock, at least [-] hours.

Xia Yan led Zhou Zheng into the office, which was a large collective office with desks one after another.

"I don't have time to add a table for you now, and you are seconded here again, so you can sit at my table now, I happen to have a complete file there, you can just take it and read it." Xia Yan explained.

"Okay." Zhou Zheng felt a series of scrutinizing eyes, but he didn't care, but ignored them.

"It's right here." Xia Yan patted the desk, and added, "There are instant noodles in the drawer, and there is hot water in the thermos pot on the table by the door. If you're hungry, make it yourself."

"Thank you." Zhou Zheng sat down directly.

"If you can solve the case, I will thank you." After Xia Yan finished speaking, he turned and left, walking towards the other members of the criminal police team.

"I'll try my best."

Zhou Zheng whispered to himself that he quite liked the feeling of freedom. If someone from the criminal police team told him something, it would be easy to have preconceived notions.

The table in front of Zhou Zheng was extremely messy, with all kinds of messy things on it, a few randomly placed notebooks, gel pens without caps, some instant food packaging bags that I didn't have time to throw away, and scattered kneaded balls. tissue.

This is a rough guy with rough nerves.

The usual attention should be on the case.

Zhou Zheng focused his attention on a dark blue folder, which was the file of this case.

"Hu-hu-hu-"

Zhou Zheng took a few deep breaths in a row, slowly closed his eyes, and calmed down his mind. When he opened his eyes again, his eyes became extremely sharp, and he quickly opened the file and read it carefully.

Photos of the scene appeared in his eyes.

He planned to look at the photos of the scene and the corpse first, which would give him a feeling of directly observing the scene, and then go to the written records, so as not to be misled by the words, even though what he directly recorded on the file was not correct. Strict descriptive text with emotional tendencies, but he needs to feel the murderer's psychology through the details of the scene.

After half an hour.

Zhou Zheng read all the file records and autopsy report.

First homicide:
At 4:12 a.m. on April 9, in Room 24, Block B, Building 328, Mingzhu Community, No. 3 Jing’an Street, Jianghai New District, the neighbors smelled a strong smell and knocked on the door. No one answered, and the property called the police. After breaking the door, the victim Zhang Yong was arrested. It was found that he died in his own home, no trace was left at the scene, and no property was lost. The body was found by a neighbor and the property called the police.

Zhang Yong, 22 years old, a hairdresser, is the owner of the house at the scene of the crime. He is unmarried, living alone, and has an unidentified girlfriend. Cut off, the clothes were neatly folded not far from the corpse.

After forensic autopsy, Zhang Yong's death time was between 4:9 and 21:23 on April [-]th. The cause of death was mechanical asphyxiation caused by being strangled by elastic nylon ribbons. A large amount of ethanol was extracted from the heart blood. After death, the skin was carefully prepared and the lifeblood was cut off.

After a lot of interviews and investigations, there are currently no witnesses because Zhang Yong was murdered late.

The storage time of the entrance and exit monitoring and elevator monitoring of Mingzhu Community is 48 hours. The monitoring screen when Zhang Yong was killed happened to be overwritten. The car key was found in Zhang Yong’s clothes pocket, and his vehicle was found in the basement of the community. The Star Bar, 12 kilometers away from the last place, spent 4890 yuan.

Second homicide:
At 4:24 a.m. on April 6, in Room 11-18, No. 3, Heishi Street, Zhongcheng District, Jianghai, the neighbors upstairs and downstairs smelled a strange odor in the corridor. After confirming the source, they knocked on the door and no one answered, and then called the police. After breaking the door, a murder was discovered. , the scene was well preserved, and the trace inspectors did not extract any useful traces.

Victim Li Xuan, 19 years old, student, tenant, unmarried, no girlfriend, living alone, body was found lying on his back in the bedroom, with serious strangulation marks on his neck, naked lower body, lifeline cut off neatly, pants neatly tucked Stack bedroom bed.

After forensic autopsy, Li Xuan's death time was between 4:20 and 22:24 on April [-]th. The cause of death was mechanical asphyxiation caused by being strangled by elastic nylon ribbons. A large amount of ethanol was extracted from the heart blood. After death, the skin was carefully prepared and the lifeblood was cut off.

After investigation, there were no witnesses.

Heishi Street belongs to an old residential area to be demolished. There is no surveillance around, and no effective image information can be extracted. The last time he was alive was in the study room of Jianghai Jiaotong University.

Third homicide:
At 4:30 a.m. on April 5, in Room 48, Building 9, Changhuwan Community, Jianghai New District, the cleaning staff found that the door of the household was not closed when cleaning the corridor. They knocked on the door to remind them that no one answered. When they looked inside, they found a dead body in the entrance. Then call the police.

The victim Zhang Yunhu, 22 years old, was unemployed and lived alone. The house was owned by his girlfriend. There were strangle marks on the neck of the corpse, the lower body was naked, and the lifeblood was cut off. There were no useful traces at the scene, and the pants were folded on the corpse.

After a forensic autopsy, Zhang Yunhu died at around 4 am on April 30. The cause of death was mechanical suffocation caused by being strangled by elastic nylon ribbons. A large amount of ethanol was extracted from the blood of the heart. After skin preparation, cut off the lifeblood.

长湖湾9号楼电梯监控显示张云虎是在4月29日晚上23时22分独自搭乘电梯从地下停车场回家，其后没有人再在14层下过电梯，直到被保洁发现，走廊处没有监控。

……

The modus operandi of the three murders is extremely similar, coupled with the special phenomenon of cutting off the lifeblood, it can be confirmed that they were committed by the same person.

The scene was cleaned very clean, without leaving any useful traces. Only the last murder case had video surveillance reference, but no effective information was found.

So far, there is no information about the murderer, not even a list of suspects.

This is the current difficult situation of the Jianghai Municipal Bureau.

"call……"

After reading everything about the dossier, Zhou Zheng breathed a long sigh of relief, the blurred shadow in his heart became clearer and clearer.

"The portrait of the suspect came out."

The corners of Zhou Zheng's mouth curled up slightly with a confident arc. In the past two years, he has studied criminal psychology portraits with Professor Fan, read countless cases, and has already formed a judgment theory system in his heart.

"So hungry!"

After Zhou Zheng relaxed his highly concentrated spirit, he suddenly felt a burst of hunger. This was the sequelae he had since the incident in junior high school, or it was the price.

His memory and thinking ability have been greatly improved, but after thinking, he consumes a lot of physical energy and needs food to supplement his energy.

Thinking of Xia Yan's explanation, he immediately opened the drawer, took out a bucket of braised beef noodles, tore open the package and went to the kettle to brew.

After 3 minutes, start eating noodles.

While Zhou was eating noodles, Xia Yan hurriedly walked into the office. He knocked on the whiteboard heavily, attracting everyone's attention.

"Meeting!"

Xia Yan's voice was very loud, and the members of the criminal police team were also very strong in execution, and quickly walked towards the whiteboard.

Zhou Zheng looked at the half-eaten instant noodles, and suddenly realized that it was two o'clock in the afternoon, which was exactly the time for the meeting as Xia Yan had told him.

It looks like I can't eat any more!

Zhou Zheng put down the instant noodles, followed in the crowd, sat on the chair in the outermost corner, and looked at the whiteboard together.

There is an analysis chart written with a black marker on it, photos are attached to it, and the information of the victim is also recorded.

"There's no progress, so listen to me!" After Xia Yan glanced at everyone, he picked up a marker pen and prepared to write on the whiteboard.

"Captain, have you found anything?" One of them asked curiously.

"Listen up!" Xia Yan said with a smile on his face as he drew on the whiteboard, "According to my two-day investigation and investigation, I found that the three victims have one thing in common, that is, they are Scumbag!"

Xia Yan wrote the word "scumbag" on the blackboard.

"The first victim, Zhang Yong, often went out to bars and hung out with different women. His private life was very chaotic. Although he didn't have a girlfriend when he was murdered, there were quite a few people who were cheated on by him!" Xia Yan said in Zhang Yong's name. A circle is drawn on it.

"The second victim, Li Xuan, is a student of Jianghai Jiaotong University. After investigation, it was found that he was very active on social media and often made appointments." Xia Yan drew a circle on Li Xuan's name.

"The third victim, Zhang Yunhu, has a girlfriend and lives in his girlfriend's home, but he often goes to bars with his girlfriend behind his back, which arouses strong dissatisfaction from his girlfriend." Xia Yan finally drew a picture on Zhang Yunhu's name. lock up.

After the three circles were drawn, everyone in the room frowned, their eyes flickering with thought.

"Therefore, I deduce that these three murders were love killings. The murderer should have been killed by these three scumbags. They should be the murderer's three predecessors. After the murderer was stimulated by the last one, he was depressed and chose to kill. His life was cut off. The son is the psychological portrayal of her revenge, so we should re-investigate the relationship between these three people and women, and the person who has a common intersection with them is the criminal suspect!" The more Xia Yan said, the louder his voice.

clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap...

After a moment of silence, there was thunderous applause at the scene. They had been troubled by this case for several days, and they finally found a breakthrough, feeling very excited.

"As expected of the captain!"

"The captain is still amazing!"

"Captain bully!"

"..."

Everyone at the scene admired one after another, and their faces became much more relaxed. They were not afraid of the difficulty of the investigation, but they were afraid that there would be no direction for the investigation.

A smile appeared on Xia Yan's face, he was very satisfied with the reactions of these people, and then he said, "Do you have anything to add?"

"Have."

At this moment, Zhou Zheng, the only one in the corner who did not applaud, raised his hand, which suddenly attracted everyone's attention.

"Tell me." Xia Yan nodded.

"The murderer is..." Zhou Zheng's eyes suddenly became sharp, and he said something that shocked everyone at the scene, "Male!"

(End of this chapter)