Chapter 9

Mosquito reincarnation burns corpse

How can a primary school student burn the school dormitory he hates at home?

How can a laid-off worker ignite goods from a factory warehouse outside the site?

Among all kinds of crimes, arson and murder are serious crimes that are often compared. Some self-righteous criminals will adopt remote control or delayed ignition. Although the fire will destroy some evidence of the crime, they will often backfire when underestimate the police's investigative ability.

Zhang Qingjin hung on the hook on the roof of the bedroom, which was reserved for the ceiling fan.

Under Zhang Qingjin's hanging body was a bed, which was beyond recognition after burning. His lower body was burned in black coke shape, and his coat was roasted into a ball, attached to his body like a tumor. His facial skin exploded, burned on the outside and tender on the inside, like roasted lamb in a restaurant.

Many suicides, worried that they will not die, often choose multiple suicide methods at the same time.

For example, drink pesticides first and then hang them, take a lot of sleeping pills before jumping off the building.

The police found a tool for committing crimes in the storage room of Zhang Qingjin's rental house, a cutting machine. This pointed directly at him as the murderer. Zhang Qingjin killed Lin Liuyue and her son Xiao Tieyu. He committed suicide because he was afraid of the crime, and set fire to the fire and then hanged him. On the surface, this person was determined to die. The truth of the case was revealed and it should end here.

However, this fire caused many doubts.

The fire scenes vary greatly. The most important thing during the investigation is the fire site investigation. Due to the different forms of fire and the physical and chemical properties of the original items that form traces and physical evidence, the causes of fire are also diverse. First, it is necessary to determine the fire point in combination with on-site investigation. Any residual object in the center of the fire is crucial. Furnitures with small support surfaces such as round tables and coffee tables are under the action of flames. Because the first burning side is weightless, they will be opposite to the direction of the general furniture. The ashes of wooden furniture are piled vertically in the original position. Although the direction of the fire spreading cannot be pointed out, it can prove the degree of the fire development and the distance from the fire point, so as to determine the fire location based on the spread traces.

Bao Zhan found a pile of burning substances by the bed. Combined with the scene, he confirmed that the fire point was the fire point. Separate the burning substances in a section, carefully observe the combustion conditions of each layer of residues, identify the types of substances in each layer, and then clarify the cause of the fire.

There are residual mosquito coils in the burning substance, and the mosquito coil brackets, matchsticks, and newspaper ashes. By connecting these things, you can analyze how the fire occurs.

The murderer lit a plate of mosquito coils and placed them on the bracket, placed a few matches on the mosquito coils, and then placed a ball of newspapers on it. The mosquito coils ignited the matches, and the matches burned the newspapers, and the bed sheet next to it also caught fire, and a fire broke out.

The mosquito coil can burn for several hours, and it can create proof conditions for the murderer to be absent.

When the fire broke out, the murderer was far away from the scene, deliberately causing the police to mistakenly believe that the murderer had no time to commit the crime.

After visiting, the mosquito coils and matches were bought by Zhang Qingjin from a nearby convenience store. No smoke and dust were found in the forensic's autopsy report of the deceased Zhang Qingjin's trachea and lungs, indicating that he was dead when the fire broke out.

The murderer has the characteristics of a high IQ crime. After the murder, he used local materials to forge a suicide scene in a short period of time.

Although there are many clues, the case is still at a deadlock and the police are at a loss.

The special case team held an emergency meeting. At the meeting, everyone confirmed the direction of the investigation. Both cases were caused by acquaintances. At the time of the incident, Lin Liuyue took her child, put on makeup and applied lipstick. The person she was going to meet was a very close person.

A leader said: "Why the case is

No progress? I don’t know how many people the murderer is, whether it is a man or a woman.”

Su Mei said: "I tend to commit crimes with multiple women. Now there is one more criminal suspect, and the case is still progressing."

The leader asked, "Which one?"

Su Mei said: "Zhang Qingjin's wife, a good family was broken by an extramarital affair. Zhang Qingjin's wife may hold a grudge against Lin Liuyue and take revenge."

Bao Zhan said: "I think the murderer is a man and one person commits the crime."

Hualong said: "I agree with Baozi's opinion. None of the victims had obvious fighting scars. The murderer should be a strong adult male with high IQ and strong physical fitness."

Erbao stood up and said, "I want to review, I have concealed an important thing."

The leader asked, "What's the matter? Sit down and talk."

Erbao still stood and said, "That day, Aunt Qi mocked me. After I got home, I washed off the lipstick marks on my face. I suddenly remembered that there was lipstick marks on Lin Liuyue and Xiao Tieyu's corpse. Will there be any connection?"

Hualong said: "If you say this, Aunt Qi's suspicion cannot be completely ruled out. You can ask her to molest again. Let's compare the lipstick ingredients."

Erbao looked embarrassed and said hesitantly: "I... OK!"

The leader said: "Stop kidding, what should we do now?"

Professor Liang said: "I have a good idea!"

The leader said: "What method?"

Professor Liang said: "We must have omissions in our early work, so we did not find important clues. If we want to seek breakthroughs and lock in the real murderer, we will do the boring and tedious work again in the stupidest way!"

Professor Liang reassigned tasks and asked everyone to take their own responsibilities and must be comprehensive and in-depth.

Erbao visited Aunt Qi again to find out whether this person was suspected of committing the crime.

Su Mei conducted a key investigation on Zhang Qingjin's wife and immediate relatives.

Hualong learned from the side that the social relationship between Zhuang Qin's lover Xiao Ming was. In addition to Zhuang Qin, were there any other men?

Bao killed the provincial capital and made a comprehensive record of Zhuang Qin's whereabouts during the incident, including those who had close contacts and those who had contacted him. At present, the possibility of buying a murder cannot be ruled out.

Zhang Qingjin's wife is also a teacher, and the couple teaches in the same middle school.

After the divorce, she returned home alone and closed the door alone. The house was in a mess. The drawers were opened and the cabinets were also open. The food in the kitchen smelled bad. She sat on the ground against the wall, sitting in the dark, and felt sad.

Su Mei and two policemen knocked in and the police wanted to take Zhang Qingjin's wife back to the police station, but Su Mei stopped her.

Su Mei saw a pair of crutches placed by the wall. Zhang Qingjin's wife was a disabled person. She was paralyzed by her right lower limb due to illness, which directly ruled out her suspicion of the crime.

The police implicitly explained the purpose of the visit, saying that something happened to Zhang Qingjin and a fire broke out in his residence.

Zhang Qingjin's wife stood up tremblingly and asked, "Which hospital is he in? I'll go see him."

Su Mei said: "I'm sorry... your husband has passed away."

Zhang Qingjin's wife was in a trance and fainted on the ground.

Two families were broken and three people were killed, but the real murderer was still out of trouble and hid behind the fog.

Professor Liang thought that Zhuang Qin was the most suspicious, so he sent a decent general Bao Zhan. Bao Zhan felt very stressed. After arriving at the provincial capital, he did not close his eyes for two days and two nights and visited one after another.

Everyone Zhuang Qin had contacted investigated every place Zhuang Qin had been to, and obtained a group photo of Zhuang Qin at the dealership and a surveillance footage of staying in the hotel. After repeated comparison and analysis, he made an amazing discovery. On the return bus, Bao Zhan fell asleep. At the same time, Hualong led people to arrest Zhuang Qin.

This interrogation is different from previous police summons. Professor Liang is proficient in criminal psychology and knows that the suspect has very good psychological qualities, so he set up a special interrogation room.

The interrogation room is soundproofed from the outside world, and there is a perspective mirror on the wall. Most suspects are already nervous when they are handcuffed, and the mirror deepens their uneasiness. The suspect does not know who is behind the mirror and is worried that the victim or witness may stand behind the mirror. Driven by this idea, the police will have a great deterrent effect on the suspect's psychology.

This interrogation room is closed and has no sunlight. The suspect and the police are separated by a cold iron fence, which makes the police more majestic. The light shines on the suspect's face, and no expression can escape the police's eyes, which further increases the atmosphere of fear and shrinkage. If anyone else is unwilling to stay in such a place for too long.

As the interrogation officially began, Professor Liang also put on his police uniform and stared at Zhuang Qin intently.

Zhuang Qin said uneasyly: "I want to find a lawyer, why should I arrest me?"

Professor Liang said: "Of course, it is your right to find a lawyer to defend you in court."

Hualong slammed the table suddenly, pointed at Zhuang Qin and shouted, "I know why I'm arresting you, you know why I'm arresting you here."

Zhuang Qin said: "I don't know, don't put a trap on me."

Professor Liang said: "Zhang Qingjin, do you know him? He is the man who had an extramarital affair with your wife. He is dead."

Zhuang Qin said: "What does this have to do with me?"

Professor Liang said: "Of course it has something to do with you. Do you know he is dead, right?"

Zhuang Qin said: "I heard it was burned to death."

Professor Liang said: "Where were you when the fire broke out?"

Zhuang Qin said: "I don't know when the fire broke out. I have been at home with a few relatives to handle the funeral for my wife. [31    Fast update]"

Hualong said: "You pushed it very cleanly. I see, you won't tell the truth if you don't beat you up."

Zhuang Qin said: "You are still torture and forced confession?"

Professor Liang said: "We will be very polite to you. Don't worry, you attended a distribution meeting in the provincial capital and your wife was killed. On the surface, you didn't have time to commit the crime, but we found a few small questions, please answer truthfully."

Zhuang Qin said: "Can my lawyer answer my answer?"

Professor Liang looked at Zhuang Qin, was silent for a while, and said, "If you don't answer, you're guilty. What do you want to hide?"

Zhuang Qin said: "Okay, then you ask."

Professor Liang said: "You usually smoke Yuxi cigarettes worth 20 yuan per pack, but why do you smoke Honghe with 5 yuan per pack in the provincial capital?"

Zhuang Qin replied: "I can't save money yet? What's the problem?!"

Professor Liang said: "You rarely eat garlic and cannot eat spicy food because you have stomach ulcers. But in a restaurant in the provincial capital, you ordered a plate of spicy chicken and a portion of garlic-flavored eggplant. Why is that?"

Zhuang Qin was a little angry and said, "Whatever I eat is my freedom, you have too much control."

Hualong said: "So you can pretend, you are really good at pretending."

Zhuang Qin turned his head to the side and said, "If you don't have any evidence, you can detain me for up to 48 hours."
Chapter completed!