After the policemen Lao Chen and Xiao Zhang came out of the "Yiyue Hotel" in the county seat, they returned directly to the bureau and interrogated the suspect Wu Yijin; The two policemen let Wu Yijin identify the images of the guests who were retrieved from several small hotels, and he looked confused, saying that no one in them had seen it.

The incident started the day before yesterday, when the police received a report that a man's body was found in a dilapidated building near the county train station.

The police arrived at the scene, and upon examination, the time of death was about a week ago; Although there were no identification items on the deceased, several police officers who were present at the scene recognized him, this person was Liu Ermao, a thug who often wandered around the railway station in the county seat, and he had been detained many times before. The forensic doctor arrived at the scene for a preliminary examination, and found no pinholes on his body, nor did he find any signs of drug use or bleeding, and the conclusion was tentatively determined to be homicide.

Lao Chen and Xiao Zhang of the Criminal Police Brigade accepted the task of investigating the cause of Liu Ermao's death, and they first came to the forensic medical department.

The medical examiner pointed out that on the autopsy photograph, a purple spot was found on the thug's neck, which was a trace of internal bleeding caused by the blow he had been beaten before his death. The forensic doctor explained to Lao Chen and Xiao Zhang that the carotid sinus in that place is a blood pressure feedback adjustment sensor, and when hit by gravity, it will feed back to the signal of a sudden increase in blood pressure in the center, so that the body feedback regulates blood pressure and makes the blood pressure suddenly decrease; At this time, it is very easy to faint immediately.

When analyzing the cause of death, the forensic doctor pointed out that there was a subdural hematoma in the frontotemporal part of Liu Ermao's left side of his head on the X-ray photograph, indicating that he had been hit by external force and formed brain herniation; The medical examiner believed that it was the final blow that caused the increase in intracranial pressure and the arrest of breathing, thus confirming the conclusion that he was killed.

According to the conclusion of the medical examiner, Lao Chen and Xiao Zhang decided to start with Liu Ermao's circle to see if he had any fights with the gangsters at the train station; The two policemen approached several thugs, but none of them knew about it; Later, a gangster said that Wu Yijin, a gangster who has a good relationship with Liu Ermao, has been hiding recently, and he may know something.

When Lao Chen and Xiao Zhang found the little man Wu Yijin in a neighboring county in plain clothes, he was playing games in an Internet café; Xiao Zhang stepped forward and patted his thin shoulder, and he jumped up from his seat in shock, and ran without looking back; When he was caught, he was relieved to see that it was a police officer who had come looking for him.

He explained to Lao Chen and Xiao Zhang that he was indeed hiding from something, because someone wanted to hunt him down.

Wu Yijin confessed that more than a week ago, Liu Ermao told him that he had a big job and needed someone to help, and the location was the square in front of the train station.

According to the agreed time and place, wait for a person of medium height wearing a hat and sunglasses.

The man walked up to Liu Ermao and asked, "Did you bring it?" ”

Liu Ermao probably heard the person who was waiting, and asked rhetorically: "Did you bring it?" ”

The man stared at Liu Ermao coldly, his face expressionless.

Liu Ermao seemed to be a little hairy, and said, "Didn't you say yes?" Live exchange! ”

The man remained silent, and there was a chill behind his sunglasses.

Liu Ermao softened first, and reached into his trouser pocket to take out something: "Okay, I'll give you ......"

The man suddenly stepped on Liu Ermao and turned around and ran, Liu Ermao scolded, "Raised by a bitch!" Pulling his legs to chase after him, Wu Yijin followed closely.

When he arrived at the unfinished building not far from the train station, the man stopped, bent over the wall and panted there, Liu Ermao ran to the man, the man took out a stack of money, Liu Ermao was just about to take the money, the man waved his hand, and Liu Ermao was beaten straight and fell down.

Wu Yijin was frightened when he saw this, and turned around to run, but the man grabbed Wu Yijin's sleeve; Wu Yijin struggled hard, his sleeves were torn off, and he ran away.

Wu Yijin heard no footsteps coming behind him, stopped and looked back, and saw that the man was searching Liu Ermao's trouser pocket, and after the search, he kicked Liu Ermao's head, who was still lying on the ground and did not move, and Liu Ermao's head was kicked and shook vigorously; As soon as the man turned around and saw Wu Yijin, he stopped caring about Liu Ermao and chased after Wu Yijin, who was so frightened that he ran away; The man chased after him for a long time, and finally got a bicycle out of nowhere to chase after him; Wu Yijin was familiar with the county seat, turned around in the alley, and finally ran away from the alley; But he didn't dare to stay in the county seat, and slipped to his second aunt's house in a neighboring county and hid for more than a week until he was found by the police.

Wu Yijin added: "When the man looked back at me, he took off his sunglasses, and his eyes were really scary, and his eyes were full of vicious murder; So I'm glad I was fast, thanks to the fact that the sleeves of my clothes weren't sewn well. ”

Lao Chen has been dealing with these little thieves for many years, and knows that the sleeve is not sewn tightly is a small mechanism for their thugs to escape, so he deliberately did not expose him, and wanted to hear him continue.

Xiao Zhang asked sharply: "What is the exchange on the spot?" Is it a drug? ”

Wu Yijin probably knew the seriousness of drug trafficking, and hurriedly said: "Liu Ermao didn't tell me what it was, but I know that Liu Ermao is not involved in drugs, and he said that he hates that kind of thing, and it is estimated that it has something to do with his father who died of drug addiction." ”

According to Wu Yijin's situation, Lao Chen arranged for Xiao Zhang to transfer surveillance video from the train station; It can be seen from the video that what Wu Yijin said is true: he and Liu Ermao stood with the person and stayed for a while, and then the person ran away, and the two chased behind, and all three of them were out of the surveillance camera range. From the surveillance video, it can be seen that the man arrived at the train station early before contacting them, and walked around the meeting place, and later saw them coming, and circled around them two or three times before coming forward to talk to them.

The surveillance camera is far away, and the face of the person in the video is not very clear, but it can be seen that the person looks at the surveillance camera twice.

Lao Chen and Xiao Zhang's initial analysis is that from Wu Yijin's confession, it can be determined that Liu Ermao and that person are going to do an exchange business, Liu Ermao will give things, and that person will give money; Through the conversation and actions with Liu Ermao, the man confirmed that Liu Ermao had brought the items that the person wanted, and then deliberately provoked Liu Ermao, took him out of the surveillance range of the surveillance camera, and then made a ruthless move. But what Liu Ermao wanted to exchange money for, Wu Yijin didn't know, and it could be seen that he was only temporarily called to play the role of an accomplice.

Although I don't know what that object is, it can be installed on the body and is not visible, indicating that the object is not large; Liu Ermao brought a helper when trading, indicating that he had estimated that there was danger in the transaction, and that there was a problem with the origin of the object; Judging from Liu Ermao's previous detention records, he was mostly detained for theft, so the object with a problematic origin may not be separated from the theft.

According to the activities of their gangsters, Liu Ermao's territory is generally around the railway station, and most of the thefts are people who get on and off the train in a hurry; Among these people, outsiders are more likely to be targeted, because they are unfamiliar with the place and come and go in a hurry, and even if they are recruited, they often choose to consider themselves unlucky, rather than stay here for a long time to pursue lost objects; However, if the lost item is particularly important, there are some people who will do everything possible to recover it.

The two policemen assumed that the man who killed Liu Ermao was a stolen foreigner and wanted to ask Liu Ermao for the stolen important items. When outsiders come to the local area, if they are not visiting relatives and friends, most of them choose to live in the county seat, and the settlement place is generally in hotels and inns; Fortunately, the county seat is not big, and now there are video images for check-in. According to the analysis of the two policemen, people who stay in hotels and hostels will not stay for too long, and they should be found from the guests who stayed more than a week ago; And if this guest is the one who killed Liu Ermao, Wu Yijin should be able to recognize it.

After collecting the images of the guests, they immediately asked Wu Yijin to identify them, but to their disappointment, none of them were identified by him.

Wu Yijin begged the two police officers not to let him out first, and said that he had stolen and should think about it and explain it together.

After sending Wu Yijin back to the temporary detention cell, Xiao Zhang pointed out that judging from the person's behavior of deliberately avoiding the surveillance camera and running to the unfinished building, combined with the fact that the person arrived at the scene in advance and turned around away from the delivery person to observe the surroundings, the man's ruthless action was premeditated.

Lao Chen looked at Xiao Zhang and waited for his next step, but Xiao Zhang scratched his head and said that there was no idea.

Lao Chen walked outside the building, Xiao Zhang followed, handed Lao Chen a cigarette at the door of the office building, and said, "I have a new idea." ”

The ash barrel outside the building is the favorite place for old smokers; In their words, you can't hold your mind if you don't smoke a cigarette.

Xiao Zhang lit a cigarette for Lao Chen and himself, took a puff, and said: "Judging from what Wu Yijin said, the person who killed people seems to be a practitioner, who knows kung fu with fists and feet, and his shots are accurate and ruthless. ”

Lao Chen raised his eyes and looked at Xiao Zhang: "Go down." ”

Xiao Zhang took another puff of his cigarette and said, "I think Chana can start with all kinds of martial arts classes, including ...... who practice sanda in the park."

Lao Chen took a puff of cigarette and said: "In that case, even if it is determined that the person is not from outside, but from this county, the scope of investigation is still too wide, and if you add the folk skills, the investigation will take too long." ”

Xiao Zhang was dumbfounded, lowered his head and took a few puffs of cigarettes.

Lao Chen paused for a moment and said, "Let's start with Liu Ermao, it will be better." ”

Xiao Zhang was puzzled and said, "Aren't we going to investigate the murderer?" How to start with Liu Ermao, who was killed? ”

"Like you said, this fight was premeditated, not a roadside accident; Since Liu Ermao asked that person to come, then Liu Ermao is the head of the thread, and he can follow the end of the thread. Lao Chen snuffed out the cigarette butt.

Lao Chen continued to follow his train of thought and said: "Since that person went to the appointment to exchange with Liu Ermao, it means that what Liu Ermao has in his hand is very important to that person; Judging from the man's ruthless approach and going to death when he meets, the man not only wants to close the transaction quickly, but also has the characteristics of a fierce personality; Also, Liu Ermao was anxious to cash in on this thing, which means that the thing will not stay in his hands for a long time; If we consider that Liu Ermao has not obtained this object for a long time, we can find out from this object when he obtained this object recently and the people related to it, so that we can find out why this thing is so important to the person who hit people. ”

Xiao Zhang felt a little confused: "How to find out what was snatched from Liu Ermao's hand?" ”

Lao Chen flicked the cigarette ash and said: "Liu Ermao is a frequent visitor here, let's find out the ID card registered by Liu Ermao, and then check the mobile phone card he finally registered under the real-name system." ”

Xiao Zhang snuffed out the cigarette butt in the ash barrel by the gate, grinned and said, "Old ginger! It's really spicy enough! Now I know that I checked the phone calls made by Liu Ermao in the last few days and finalized the person he had contacted. ”

As he was talking, Lao Chen's mobile phone rang, Lao Chen picked it up and listened to what the other party said, and asked in surprise: "Guests from other places?" Zong Zhenlei? ”