◎Chapter 9 Reasoning about the real murderer

The detachment leader was familiar with this man's name, and the man who had spent the night in the sealing room was none other than his friend: the Sculptor!

This person is suspected of committing a major crime, and the act of taking pictures proves that he knew that there was a body sealed in the wall, and he deliberately stayed in that room for one night. What did he do that night? Will you spend the whole night staring at that wall in a daze, or tapping your fingers on the wall and talking to yourself about the corpses inside the wall?

In criminal psychology, there is a peculiarity about perverted homicide that killing is only the beginning, not the end of devouring.

The murderer will recall the process of the crime in his heart repeatedly, and for the psychopathic murderer, killing is an art.

The killer of the beast, Sergei Tkach, committed nearly 100 crimes, and even attended the funeral of the victim. He was as solemn as he was attending a grand music festival, quietly watching his works, and shedding tears.

When Hualong and the detachment leader were arrested, the sculptor had already fled with his wife and daughter, and before leaving home, he told his neighbors to travel to the provincial capital and took away his award certificate. The next day, the provincial newspaper published a photograph of a sculpture of a corpse wrapped in concrete. The police who were present at the time were defenseless against the sculptor who came to help, and this photo should have been taken secretly by him with his mobile phone. Su Mei contacted the editor of the newspaper, who did not know that there was a body in the statue, but only knew that the sculptor was a well-known artist in the province, so he published this photo of the sculpture. At that time, the sculptor personally went to the newspaper office to submit his article and provided his own award certificate. He claims that this is his best work and is capable of making a sensation in the world!

The newspaper of the day was sold out, the suspect sculptor became famous and became the focus of attention overnight, and the photo of the concrete corpse in the newspaper became the topic of conversation after dinner. Media from all over the country gathered in God's City, and reporters were filming and reporting every day at the hotel where the crime occurred, and the old man who repaired shoes had been interviewed nearly 100 times. Under pressure, the director of the Huangcheng Public Security Bureau had to hold a press conference.

On the eve of the press conference, many media set up "long guns and short guns" and waited for a long time, but no one from the Huangcheng police came.

There was a big difference of opinion between the director of the Huangcheng Public Security Bureau, the detachment leader, Officer Hu, and the special case team.

The director of the Huangcheng Public Security Bureau believes that the power of the media should be used to issue a B-level wanted warrant and make the sculptor publicly wanted nationwide.

Officer Hu's point of view is that the press conference will be canceled, and it is not appropriate to reveal too much information about the case before the murderer is arrested.

The detachment leader and the sculptor were friends and familiar with the social relations of the sculptor, and he said that he was willing to lead a capture team to the provincial capital to investigate the sculptor's whereabouts, and there was great hope of successful capture or entrapment.

Everyone has different opinions, and there is no consensus.

The special case team didn't say a word: Bao Yawn for days, he hadn't slept for a few days; Both Su Mei and Hualong are a little absent-minded; Professor Liang looked at the case file thoughtfully.

When the Huangcheng police consulted the special case team for advice, Professor Liang said decisively: The sculptor is not the murderer.

This was undoubtedly a bombshell, and the police made great efforts to find a criminal suspect, but the special case team easily denied it.

The director of the Huangcheng Public Security Bureau asked: If he was not the murderer, how would he know that there was a body inside the wall?

Professor Leung said that there is only one possibility, that he was an eyewitness.

Officer Hu said: This sculptor is suspect No. 1, and all clues point to him. The reporters outside thought that he was the murderer of Uncle Lu, if he was an innocent witness, why did he abscond? Also deceived newspapers

The editor, publishing a photo with a corpse, is so blatant. I think this is a kind of madness on the part of the perpetrator.

Su Mei said: The sculptor treats the corpse inside the wall as a work of art.

The painting dragon grabbed and said: At that time, the detachment leader called the sculptor to help, which was an accidental factor. If he was the murderer and sealed the body in the wall, after more than half a year, the police asked him to help remove the concrete wrapped on the outside of the body, this is too much of a coincidence, right?

Professor Leung said: Why do you take photos secretly and publish them in newspapers? The answer is, he wants to be famous.

Bao Shu asked: There is another key thing, has the source of the ring on Uncle Lu's hand been clarified?

The detachment leader looked through the visit record and said: It was Uncle Lu's daughter-in-law's ring, and I don't know the specific reason.

Professor Liang also looked through the case file and said, understood, let's go, let's go to the press conference.

The director of the Huangcheng Public Security Bureau asked puzzledly: What do you understand?

Professor Liang said: I know who the murderer is.

The director of the Huangcheng Public Security Bureau said: Okay, your special case team will hold a press conference, we will not participate, you will be responsible for what happens!

At the press conference, the special case team gave everyone an extremely wonderful lesson in criminal investigation reasoning.

Su Mei used a projector to play all the pictures of physical evidence found by the police, and gave the most detailed explanation, including the spirit of slashing and fighting, and listed the key points: enoki mushrooms in Uncle Lu's excrement, the bow and crossbow shaft left by the murderer, the ring on his hand, etc.

Professor Leung asked: Why are enoki mushrooms in the excrement of the deceased?

A reporter replied with a smile: He has eaten.

Professor Leung said: Yes, this is the simplest reasoning.

A geologist doesn't need to see Takakau Falls with his own eyes, he can deduce from just a drop of water that it might exist; Using a single coin, you can calculate the average distance from the moon to the earth; The famous Goldbach conjecture and Copernicus's "heliocentrism" were put forward in the form of reasoning. Although the conclusion of reasoning is not necessarily reliable, it is an important way to discover the truth.

In criminal investigations, reasoning is an indispensable tool.

Forensic reasoning is based on the analysis of physical evidence and clues, and then a conclusion is made. The Edison bombing is one of the world's most famous cases of reasoning, and criminal psychologist Dr. Brussels analyzed and deduced the murderer's gender, age, place of residence and what kind of disease he suffered from just from an anonymous letter, and finally helped the police catch the murderer.

Professor Liang showed the ring of the deceased Uncle Lu to the reporters, and the reporters took pictures one after another. Professor Leung asked: Can anyone tell me why he stole his daughter-in-law's ring?

A reporter replied: He may be short of money, right? Exchange rings for money.

Another reporter said: It may also be a gift to others.

Professor Leung said: Yes, both possibilities exist, and we need to rule out one of them. The first thing I know for sure is that the time of the victim's death was around 10 p.m.......

The detachment leader shook his head: The body was sealed in concrete, and even the forensic doctor could not judge the specific time of death, how did Professor Liang know about it?

Professor Leung continued: Different types of food have different digestion times, and the digestion time of enoki mushrooms is about two hours, and it can be seen from the shape of enoki mushrooms that the digestive function of the deceased was not good. It is unlikely that the killer would have sealed the body in concrete during the day, after all, there were so many people on the construction site. There is only one possibility left, to be killed at night. The time to eat in the summer evening plus the time to digest is the time of Uncle Lu's death

。 Also, I noticed that the time he went to the hair salon** was almost always around 10 p.m.

The reporter asked: What is the purpose of stealing the ring?

Professor Liang said: At 10 o'clock in the evening, the gold shops are closed, and Uncle Lu will not choose to exchange money at night. Then there is only one possibility, the ring is a gift, a birthday present for a prostitute.

Professor Liang uses the chain derivation method in criminal investigation reasoning, in a proof process, or a more complex reasoning process, the conclusion of the previous reasoning is taken as the premise of the latter reasoning, and the deduction is carried out step by step until the necessary conclusion is inferred and analyzed.

As it turned out later, Professor Liang's reasoning was completely correct, and the gold ring was a birthday gift from Uncle Lu to Mao Mao.

On Maomao's sixteenth birthday, Uncle Lu stole his daughter-in-law's ring and wanted to give it to Maomao in order to please her. Mao Mao later confessed to the police that they had this conversation:

Uncle Lu: How long do you think I haven't washed my face?

Maomao: Two weeks?

Uncle Lu said: No.

Maomao: Two months?

Uncle Lu shook his head and said, "Guess again."

Maomao didn't guess anymore and felt bored.

Uncle Lu said with a smile: The last time I washed my face was when I took a bath, during the Chinese New Year. Today I washed my face and wiped my body with a rag. I'll take you out, and I'll agree with your mother to get a night, and I'll pay for it. Today is your birthday, and I bought you a gold tweezer, you see, like it, Nini, tonight, you are mine. I'm going to ××...... with you

Uncle Lu stretched out his hand and showed Mao Mao the ring on his middle finger.

Mao Mao pouted and said: I don't want it, copper, who knows if it's true or fake.

A female reporter said: This Uncle Lu is quite romantic.

Su Mei replied: Uncle Lu was originally an exhibitionist, standing in a dark alley exposing his sexual organs to female students who were studying at night, and during the investigation, he found that many girls had met him. Here's a transcript: After school that day, I went home with two female classmates, and an old man came over and asked what time it was? After I answered, the old man said that he wanted to go to the toilet, and I said that there was one in the school. My classmates and I walked forward, and the old man said that he was suffocated to death, and he looked very uncomfortable, and I was also in a hurry, so I said let's go quickly. He was like that, he suddenly took off his pants and showed us the front, and pouted his ass with his back to us and picked it with his hands. At that time, the three of us girls were so frightened that we couldn't speak, we were so scared that we ran away crying......

The reporter raised the microphone and asked about the sculptor. Professor Liang avoided talking about it, and motioned for Bao Chop and Hualong to speak.

Bao Chop said: The murderer is three people, or more than three people!

An old reporter asked: How did you know that the murderers were three people? Is it also inferential analysis?

Bao Chu did not answer, painted a dragon to show the arrow shaft, and reporters took pictures one after another. The dragon said: The murderer has this kind of bow and crossbow shaft.

The reporters were all crazy, and rushed forward to continue to ask for information about the three murderers, but the four members of the special case team were tight-lipped as tight.

At the end of the press conference, Professor Liang told many reporters: We want to use the power of the media to persuade the murderer to turn himself in. This is a good wish on our part, our patience is only seven days, and after seven days, if the murderer does not show up at the police station, then we will carry out the arrest. Even if you run to the ends of the earth, even if you can escape for a short time, you will be saddled with a wanted warrant for the rest of your life, and you will not sleep until we capture you. In fact, we already have the details of the murderer, and the next thing we have to wait for is to turn himself in and give the murderer a chance to fight for a lighter or mitigated punishment!