"Yes, big detective, you can encounter the case with a cameo actor." When I got home, Jiang Chen said to me while cooking,

"Come and eat, the captain will cook for himself today." As soon as I sat down to eat, his cell phone rang... Several children played games in the air-raid shelter of a village around the city at about 19:00 in the evening, and accidentally found a body in the air-raid shelter, and after returning home at about 21:00, one of the children told the adults at home, and the adults and several villagers went to check and immediately called the police, and the report time was 22:08.

After preliminary investigation, the deceased was a male and the possibility of suicide has been ruled out. The surrounding villagers said that they did not know the person, and the identity of the victim is currently under investigation.

When Jiang Chen and I arrived at the scene, the trace examination department had already arrived at the scene: "This kid ran all the way here alone, saying that he was playing games with other children, he was bold enough to run far, and when he saw this hole, he was curious and went in to look at it, and then found the body, and when he went home, he went to the adult and called the police." Survey personnel have been arranged to conduct surveys nearby, and it just so happens that you are coming, let's go to the scene to take a look. "There were several obvious car tire marks in the open space not far from the bomb shelter, but no suspicious vehicles were found parked at the scene, so we searched all the way to the front of the bomb shelter, and the gradually darkening sky made the bomb shelter look even more terrifying.

Preliminary autopsy results also came out: the deceased was male, about 35 years old. The time of death should be 3 days ago.

The cause of death was initially determined to be intracranial hemorrhage caused by blunt force blow to the back of the head. There were two blunt force trauma to the back of the deceased's head with different morphologies.

One is caused by bricks, and the other may be caused by iron, and the specific information needs to be returned to the bureau for further inspection.

The deceased did not have any items on his body that could prove his identity, he was dressed in designer clothes, he did not look like a villager living in the surrounding area, and there were obvious watch prints on his wrist, but no watch was found.

No belongings such as the deceased's mobile phone wallet were found in the vicinity. It is also possible that the murderer's motive was killed after committing the crime in order to disguise the motive as a murder for money, and it is more likely that the murderer's motive for the crime is more likely, and I cannot directly determine it based on the clues I have so far.

The same kind of shoe prints appeared densely around the victim, which should have belonged to the murderer. Traces of dragging were also found around the cave entrance, consistent with the wear and tear of the deceased's legs and shoes.

After carefully surveying the surroundings of the bomb shelter, it was already getting dark, and we decided to collect the team back to the bureau first to sort out the existing clues, and the investigation into the victim's identity finally came to a conclusion in the early hours of the morning.

Jiang Chen said: "The deceased Gao Jie, male, 36 years old. General Manager of Electrical Appliance Trading Company. Blue Ocean people, living alone, came to Qingchuan City alone to work hard, and contacted his relatives and friends in Blue Ocean. The interpersonal relationship is simple, and the biggest hobby is to play with cars, and he is a VIP member of the Zongxing Club. The people in this club are car enthusiasts and keen on modifying cars. I thought for a moment and said, "The imprint of the car's tires was found at the scene, but the vehicle was not found, and the clues of this club can be followed." "Just as we were about to start the investigation from this clue, the forensic doctor also brought the autopsy report of the deceased: the deceased was a male, about 178 centimeters tall, and the time of death was between 15:00 and 18:00 three days ago.

The cause of death was intracranial hemorrhage caused by blunt instruments in the back of the brain. One blunt force wound was caused by bricks, and the other wound was about 3 cm long, and a small amount of rust was detected on the edge of the wound, which was judged to be caused by iron, both of which were antemortem injuries.

Leg contusions should be caused by dragging on the ground. The iron artifact that caused the wound to the back of the head still needs to be further identified.

I reasoned, "Two murder weapons? Since the deceased did not resist, why did the murderer change the murder weapon during the murder? The medical examiner said: "It is not clear for the time being, but in addition to this, we also found a trace of oil stain on the deceased's clothing." After identification, the stain was wood wax oil. It is mainly used for oiling, waxing, polishing and repairing all kinds of wood. It can also be used for surface treatment of clay products, ceramic tiles, composite panels, etc. I thought for a moment and continued: "The work of the deceased should not be easily stained with this oil, which is most likely left over from the murderer's murder. Jiang Chen said: "But it is very difficult to lock down the murderer with only one oil stain, and there are many people who can come into contact with wood wax oil, which is more difficult to investigate, and it is more reasonable to start from the interpersonal relationship of the deceased." "It was already dark, Jiang Chen and I drove to find the address of the club, the club was rebuilt in a small underground garage, when we arrived at the door, the club had not yet opened, Jiang Chen knocked on the door a few times before someone answered.

A man opened the door for us from the inside, he casually draped in a casual coat and a pair of slippers, looking at us with a puzzled expression, and we learned that about a month ago, Gao Jie said that he had bought a Mercedes and wanted the club owner to help him modify it.

Last week, the owner of the club was free, so he asked him to drive the car over, and the owner of the club modified the engine for him to improve some performance, and called him that afternoon to pick it up, and the owner of the club had not seen him since he drove away.

Jiang Chen asked, "Is there anything special about this car?" The club owner replied: "The car is not like a new car, it should be a second-hand one, did Gao Jie do something?" Jiang Chen said: "Last night we received a report that Gao Jie was killed a few days ago. The owner of the club was surprised and said, "How come, who will kill him?" I said, "You seem very surprised to hear that Gao Jie was killed, why?" The owner of the club said: "Gao Jie is a very good person, he is willing to help anyone with anything, I really can't figure out why someone would kill him." "After a surveillance investigation within the club, Gao Jie's arrival at the club several times was consistent with what the club owner had described.

The owner of the club said that Gao Jie's car did not look like a new car, so I zoomed in on the club's surveillance video, wrote down Gao Jie's license plate number, and handed it over to the technical department to investigate the origin of the car.

Soon, investigation information came from the police station, and according to the license plate, the owner of the car was not Gao Jie, but a person named Ma Ping'an.

Jiang Chen and I decided to conduct a preliminary investigation of Ma Ping'an first, and as soon as we arrived at Ma Ping'an's door, we heard a fierce quarrel coming from inside the door.

"Don't go crazy, okay. The agreement has been signed. Ma Ping'an shouted. Ma Ping'an's ex-wife Liu Yun replied to him: "It is written in the divorce agreement that the property is half of the two of us." What about your car, half of your precious car is also in my card. Ma Ping'an roared: "You don't want to get an inch, you have taken a lot." Liu Yun said: "Nothing can compare to your broken car!" Horse peace, you deserve to die. You and that car of yours are murderers! The woman in the door suddenly opened the door and was about to leave with her luggage, she looked at us standing at the door, Jiang Chen opened his mouth first to break the embarrassment in front of him: "Hello, I am the criminal police of Qingchuan City, and there are some situations that need to be learned from you." Liu Yun said: "Comrade policeman, are you here to arrest him, I know that Ma Ping'an, you will definitely be punished." I asked, "We just heard you say outside the door that Ma Ping'an and his car are murderers, what's the matter?" Liu Yun replied to me: "On October 12 last year, he took our son Shuai Shuai to go fishing. Halfway through, he actually left Shuai Shuai in that wild place, and finally killed my son, Shuai Shuai is only 7 years old! Liu Yun glared at Ma Ping'an viciously as she spoke, her eyes were full of hatred, and her emotions were very unstable.

Ma Ping'an explained: "I just left for a while that day, how did I know that such a thing would happen." Jiang Chen asked him to elaborate: "That day, I took Shuai Shuai to go wild fishing, and I received a phone call halfway through, and the auto parts I ordered arrived in advance and I wanted Shuai Shuai to pick them up with me, but he refused, so I went to pick it up myself." Unexpectedly, when he came back, Shuai Shuai had drowned by the lake. This matter has already been investigated, why are you here again? I continued to ask him about his relationship with Gao Jie, and he said that he was friends with Gao Jie, and he had some business dealings.

I asked him why Gao Jie's car had been with Gao Jie in the past month, and he said that Gao Jie had borrowed it from him, and the last time he saw Gao Jie was three days ago in the morning to return the car, and he had not seen the car since.

When I was about to continue asking, Jiang Chen called me aside and said, "I sent Officer Li to the deceased's company to investigate, the deceased was often on business trips, and the employees basically didn't ask about the manager's affairs, so everyone was not surprised that he didn't go to the company for a few days." Officer Lee sent me a mortgage slip that was searched inside the deceased's office. "I looked at the mortgage slip, which said that Ma Ping'an owed Gao Jie 2.3 million yuan, and now mortgaged Ma Ping'an's only Mercedes-Benz to Gao Jie, and returned the vehicle within one month, if the vehicle is not paid off, it will be owned by Gao Jie.

This mortgage bill provided an important investigation idea for the case, and Jiang Chen and I immediately dispatched people to Ma Ping'an's home to investigate and further interrogate him.

Jiang Chen asked him, "What's going on with this mortgage note?" And Ma Ping'an was still quibbling: "This can only mean that I have borrowed his money, we have already agreed, he will return the car to me first, and I will send him the money this week." Jiang Chen continued to ask: "We also found a pair of outdoor shoes in your house, the pattern marks and sizes on the soles are consistent with the shoe prints around Gao Jie's corpse, what else do you have to explain?" Ma Ping'an immediately became nervous: "I didn't kill anyone, I really didn't kill anyone!" I just threw the body in a bomb shelter! I frowned and said, "You said you only threw the corpse, so who killed him?" What's going on? Ma Ping'an had no choice, so he had to say truthfully: "Okay, I said, on the 9th, I went to the suburban lake with Gao Jie to go fishing, during which we had a bit of a conflict because of this car, I wanted him to be lenient for a while, but he didn't agree, so I packed up my equipment and left." But I didn't go far to calm down, I thought I could talk to him again, at least a few days of turnaround time he should give me, and he drove me over, this wilderness, I couldn't find a car home for a while, stuck here troubled me to come back to him, saw him in the cab of the car. But he was lying on the steering wheel, and he didn't say anything to him. I quickly opened the car door and saw that there was blood on his head. I was terrified, but when I saw that his index finger was still moving, I wanted to rush him to the hospital. I moved him to the co-pilot and hurriedly drove to the hospital, but due to the uneven mountain road, he bumped in the co-pilot many times, I got out of the car to straighten him a little to avoid hitting his head, and probed his nose and found that he was out of breath. There is not even a person here, and if you report the crime, you can't even find a witness. As soon as I was scared, I remembered a bomb shelter that my son and I had found before, and then in a daze, I threw people there, and I really didn't kill them! "In order to verify the authenticity of Ma Ping'an's testimony, we carefully inspected the car and the wild fishing site.

Ma Ping'an's Mercedes-Benz tire prints are consistent with the tire prints at the air-raid shelter, and the soil components from wild fishing and air-raid shelters are also extracted from the gaps in the tires.

The driver's seat and co-pilot of the vehicle both detected the luminol reaction, which was basically consistent with Ma Ping'an's confession according to morphological analysis.

A small amount of iron sand was also found in the crevices in the car, which is difficult to adhere to the soles of shoes and enter the car, and the source is unknown.

Not far from the wild fishing place described by Ma Ping'an, a set of small old overalls was found, Ma Ping'an was tall, and this set of overalls did not match Ma Ping'an's figure at all.

Some oil stains were detected on the uniforms, which were consistent with the stains on the clothes of the deceased Gao Jie. In the pocket of the overalls is a remittance slip that has been soaked in water, and is currently in need of technical restoration.

The oil stains and blood stains on the old overalls and the corpse prove that the person wearing the old overalls had close contact with the deceased, and that the old overalls did not match Ma Ping'an's figure, and the owner of the old overalls was suspected of committing a major crime.

At this time, there are still many doubts in the case, and the case cannot be closed immediately. The police carried out technical restoration of the contents of the remittance form, fortunately, the clothes should not have been washed, it may have only been soaked by rain, and the note in the pocket was not rubbed.

We immediately went to Zhang Tang's house and searched it. However, there was surveillance in Zhang Tang's store, and the surveillance showed that he had been in the store on the 12th, and there were many customers who came to the store to talk to him, and after verification, he had a conclusive alibi when the deceased was killed.

He is not the murderer of the crime, but why did his overalls appear at the scene of the crime? We interrogated Zhang Tang, and another suspicious figure gradually emerged... Transcript content: Jiang Chen: Do you know this set of factory equipment?

Zhang Tang: It's mine, but this dress has long been lost. Jiang Chen: These car magazines were found at your bedside, do you know the car on the cover?

Zhang Tang: I don't know, I just look at the car models in this magazine. This magazine belongs to my friend Sun Kai, so I borrowed it for a few days.

Jiang Chen: Can you briefly talk about this Sun Kai? Zhang Tang: Sun Kai is very diligent and down-to-earth, and he is easy to get along with, but unfortunately there was a car accident half a year ago, the road was not monitored, the driver ran away, and he fell disabled on one leg.

But Sun Kai exercises with a special sandbag tied to it every day, and now if he doesn't look carefully, he can't see that Shui's leg has been injured.

He doesn't talk much, and his only hobby is looking at cars. I vaguely felt that there was some kind of connection between Sun Kai's car accident, the purchase of a vehicle magazine, and the vehicle mortgaged by Ma Ping'an to the deceased, and the broken iron sand found on Ma Ping'an's car may be the key clue to solve the case, so I immediately asked Jiang Chen to interrogate Sun Kai.

Jiang Chen took people to Sun Kai's house, where Sun Kai had sandbags tied to his legs, and there were traces of sewing on the edges.

The iron sand in the sandbag is the same as the iron sand in the Mercedes Benz. Jiang Chen asked, "What kind of car hit you when you were in a car accident?" Sun Kai said that it was too dark to see clearly, and Jiang Chen continued to ask: "In order to find this car, you bought so many car magazines, and you wasted a lot of effort." Sun Kai said: "Officer, I'll buy a magazine to see if it's against the law." Jiang Chen continued: "We found some iron sand in a Mercedes Benz, which is consistent with the iron sand in the sandbag on your legs. That car is the one that hit your pen vehicle, and you have a grudge against the owner so you choose revenge, right? Jiang Chen tentatively threw out questions, and the person in front of him was very emotional, and quickly admitted his crime.

Sun Kaiqiang held back tears and said, "My leg could have been saved." The doctor said that as long as the surgery was done in time, my leg could be restored to the same as before. But he chose to evade responsibility, I couldn't move my hands and feet after being hit, and I waited until someone passing by called 120 to pick up a life, but my leg was disabled for life. I had atrophied muscles in my left leg and nerves that needed to be tied to a sandbag to maintain my balance, and after the treatment, I was able to stand up only to find that my left leg was shaking involuntarily, and at that moment, my whole world collapsed. I called the police, but I didn't know the car, my vision was blurred after the hit, and it was night, and I couldn't see the license plate number, so I could only roughly tell the police about the color, size, and shape of the car. Another feature of that car was that there was a small sticker on the butt of the rear car, and I didn't know exactly what kind of sticker it was. The surrounding area is too remote, there is no surveillance, there are many branch roads, and the police have not believed it for a long time. I asked, "So you yourself found him and decided to take revenge?" Tears flowed down Sun Kai's eyes, and continued: "I finally came out of the countryside, because of this leg, the money I saved was spent on surgery, and I couldn't even find a decent job, I worked hard and it couldn't recover, and I had to be looked down upon, my life was all harmed by him, I must find him, and then kill him." When I asked him how he planned all this, he replied, "I go to the car every day after work, and all the money I save is used to buy car magazines." God has eyes, after more than half a year, a month ago, I finally saw the parked Mercedes Benz in front of an electrical appliance mall, with a similar children's sticker on the back. I wandered around the appliance store for several days, and finally I found out that the person was the manager of the appliance store. I started to follow him and found out that he had a habit of driving to the countryside every Sunday. When Zhang Tang came to my place for a drink, he left the old work clothes he had planned to throw away here, and I wore his clothes that day. On the 9th, I waited early in the mountains and forests where he often fished. But it was two people who got out of the car, and I had to wait, but they got into an argument not long after, and one of them packed up his things and left. Gao Jie didn't take long to pack his things and wanted to leave, I sneaked into the back seat of his car while he was carrying fishing tools back and forth and the car door was unlocked, he ruined my life with the car, and I also wanted him to end his life in the car. His windows were all black, and his trunk was full of fishing tools, so he couldn't see me if he wasn't paying attention. He got into the car and was just about to start it when I took a hammer and slammed it into his head. I took away his mobile phone, purse, watch and other valuable things, and when I fled, I threw the blood-stained overalls in the field halfway through. I asked, "Where are you hiding the looted property and the tools of the crime?" He said: "I didn't dare to sell the stolen things immediately, so I sent them back to my hometown for my parents to keep." The tools of the crime are buried next to the clearing. But when I asked about the bricks, he didn't know anything, so there was another murderer, and the current evidence showed that the most suspicious was Ma Ping'an.

The police immediately intensified the search of wild fishing sites, abandoned air-raid shelters and the way back to Ma Ping'an's home, and finally found a bloody brick three kilometers away from the crime site.

In the face of ironclad evidence, Ma Ping'an finally admitted his crime. After the death of his son, he lived every day in the resentment of his wife and the remorse of his own self, finally, he could not continue to endure this painful life, and filed for divorce from his wife, and his wife took away half of the property belonging to the two, which made Ma Ping'an's already struggling company even worse, for the normal operation of the company, he used his car to mortgage Gao Jie to obtain funds.

On the day of the incident, he said to the deceased that he would postpone it for another month, Gao Jie did not agree, and after the two had a dispute to no avail, Ma Ping'an got up and left, the road was deserted, seeing that there were still dozens of kilometers to go, Ma Ping'an decided to go back and talk to the deceased after thinking about it.

But when he returned, Gao Jie was already dying of persecution. Ma Ping'an did drive at this time and wanted to take Gao Jie to the hospital, but halfway through, Gao Jie, who was dying, made the panicked Ma Ping'an mistakenly think that Gao Jie was dead, he was worried that this disaster could not be justified, and he also delusionally thought that Gao Jie's silent death could end the debt relationship between himself and Gao Jie, so he had a bad idea and took Gao Jie to the air-raid shelter that he and his son had found in this wild fishing.

In the process of being dragged to the bomb shelter, Gao Jie gradually regained some consciousness, he raised his hand slightly and opened his eyes, a huge pain immediately hit him, he wanted to ask Ma Ping'an for help, but Ma Ping'an knew that he could not explain it when he brought him here, and he was afraid of causing trouble, so he was ruthless to the end, and picked up the brick on the side and gave Gao Jie the last fatal blow.

And he also confessed to the fact of the hit-and-run half a year ago. Gao Jie, a good old man, lost his life as a hit-and-run murderer because of a help to a friend.

Sun Kai finally left the countryside, but was pulled into the endless abyss by a sudden car accident.

Sun Kai, who wanted to commit murder that day, in order to save money, reversed a few buses, and then dragged his disabled legs and feet step by step towards the fishing site, on the way due to too much physical exertion, he accidentally fell when he was about to reach the wild fishing site, hurriedly got up and continued to walk towards the fishing ground, and he was bent on revenge, and he did not even notice that the sandbag on his leg was cut by a sharp mirror stone.

After striking Gao Jie, he took all of Gao Jie's belongings and took off the watch on Gao Jie's wrist that looked to be worth a lot of money.

On the way, he threw away his overalls and fled the scene. Sun Kai then sent the belongings taken from Gao Jie's body and all his savings back to his home by courier, thinking that if he was caught, it would be the last thing he could do for his family.

But he didn't expect that he was persecuting an innocent person. The fog finally lifted, and the truth was revealed.

Both Ma Ping'an and Sun Kai will pay the legal price for their actions. I looked at the sunlight through the window and the dignified police badge on the wall, and I added a sense of grandeur to my heart.

……………… The Case (END)