The biggest gain that night was not Lin Ming, but the young singer.

Lin Ming and An Ran's two songs brought him an income of at least five or six hundred yuan. plus Lin Ming's two hundred, which is worth a month's salary of ordinary people.

Seeing more and more people throwing money, the young singer was immersed in joy and missed an opportunity to become famous.

It was only after they had been gone for a long time that the young singer came to his senses.

Those two songs.

If he can get those two songs, he will definitely become famous. But just listen to it, how do you remember it?

Thinking of this, the young singer regretted it.

But there is no regret medicine in this world.

Just as people always think about how to make up for it after doing something impulsive.

Tonight is also a very important day for Fang Junlong.

He got information that Cloud City had recently given birth to three unsolved cases, which were very problematic. Through the investigation, they zeroed in on three suspects.

One of them is a doctor.

It is very consistent with Zhou Yunkai's psychological profile of Hu Jie's case, but this doctor does not have any motive to kill Hu Jie.

Even he didn't know Hu Jie at all.

But.

is such a person who should have no connection with Hu Jie's case, but he just came into the police's sight.

Fang Junlong sat in a private car and looked at the Fengtai community not far away.

His subordinate Zhang Yu yawned and said: "This person lives a self-disciplined life to the point of perversion, and he has been staring at him for several days in a row, going to work and getting off work every day, two o'clock and one line." I didn't even go out for a walk or a walk, it's too exaggerated. ”

Fang Junlong's face was grim and said, "Be serious, this kind of person has the appearance of a high-IQ murderer." ”

Xiao Liao sat in the driver's seat and said, "Boss, will you make a mistake?" According to our investigation, this doctor named Zhao Ruimin usually lives in a simple house and never complains with others. and Hu Jie are also people from two worlds, and the two have no intersection, how can they be the murderers of Hu Jie? ”

Fang Junlong said meaningfully: "It is precisely because they are strangers who don't know each other that their suspicions are even deeper. Moreover, Zhao Ruimin's identity and personality are actually more inclined to my conjecture about the murderer. ”

The murderer was fatal with a knife, and the scene was meticulously kept. can show that the murderer is definitely a person with a high IQ and a higher education. Zhao Ruimin is a surgeon who has been practicing for more than ten years and has rich experience in surgery, and with the police investigation, he himself has a habit of cleanliness, which increases the suspicion.

The most important thing is that he was able to evade investigation in Hu Jie's case because he had no direct relationship with Hu Jie. However, in the case of poisoning in the western restaurant, as the police dug deeper, he and Niu Jin, the victim of the poisoning case in the western restaurant, actually had a direct motive for murder.

Zhao Ruimin's wife, Lu Jinhua, is a middle-level in Niu Jin's company. When the police were looking for employees in Niu Jin's company to understand the situation, some employees reported that there was an indescribable relationship between the deceased Niu Jin and Lu Jinhua, which attracted the attention of the police.

After Fang Junlong learned this, coupled with Zhou Yunkai's reminder, he immediately realized that this might be an exchange murder case.

The purpose is to avoid police investigation.

Fang Junlong said with emotion: "I have been a police officer since I graduated from the police academy and have been a police officer for seven or eight years. This kind of murder method that only exists in detectives is really the first time I have seen it. It's not a novelty, but in reality, it's really incredible. No wonder the suspect has not been identified."

Xiao Liao said: "Boss, after all. In reality, the feasibility of exchanging killings is too low, one is to kill a stranger who has nothing to do with him, and it is difficult to do it without direct hatred. The second is to exchange killing, it is possible that after one person kills another person's enemy, the other person will not choose to continue to attack. Didn't Hitchcock have a movie that said that's what it was all about. After all, even if the two are arrested, at most the crime of instigating murder without doing anything is a little lighter than killing with their own hands. Now, according to what you said, three people exchanged killings. What if the doctor kills Hu Jie and the other two don't do anything. ”

"So you need a brain to unify." Fang Junlong explained: "In this kind of case, there must be someone who can be convinced by the public to command, so as to strengthen the execution. Even they each have their own handles, which they hold in each other's hands to restrain them. ”

"Boss, the brain you are talking about is this Zhao Ruimin." Zhang Yu stared at Zhao Ruimin's house, the house was not lit, and it was pitch black. Zhao Ruimin has a regular schedule and goes to bed early, and at about 9 o'clock, he turns off the lights and goes to bed.

Fang Junlong nodded: "Among the three people, one is a woman, and the other is incapacitated, only this Zhao Ruimin meets the conditions for being a brain." ”

"In that case, what are we waiting for, boss, to catch back in the team, to "greet" for a few days, and nothing will come out? Xiao Liao said: "This kind of intellectual, you can't help but fight, maybe just to scare and scare, and then you will pee your pants." When the time comes, the beans will not be poured into the bamboo tube, and all the beans will be shaken out. ”

Fang Junlong shook his head and said: "It's useless, just looking at his calm criminal methods and self-discipline to the perverted law of life, you can see that this kind of person is by no means the one we can do with ordinary criminals." Now our biggest problem is that there is no direct evidence to prove that Zhao Ruimin was involved in this case. Even if it can be proved, at the time of the case, Zhao Ruimin did not have an alibi, and did not sleep with his wife and children at home. But he just needs to make any excuses, such as going to the roof to look at the stars when he can't sleep, and we can't do anything about him. Because he and Hu Jie have no intersection at all, there is no reason to kill him. This creates a dead knot that cannot be untied. ”

The police have some conventional methods and means to handle cases, if there is no trace of the crime scene, then the interpersonal relationship of the deceased can be investigated with a high probability of finding out who the murderer is.

This method is often seen in life.

But when encountering the kind of random murder, there is no motive for the crime, and there are no clues left at the scene, it is very difficult to solve.

Every year, the Ministry of Public Security piles up hundreds of such cases. We often hear that a murderer who has committed crimes has committed many crimes all over the country, but no one has been found. So it won't be captured until many years later, and that's why it's for this reason.

And the two cases that Fang Junlong encountered were disguised as such murder cases, thus cleverly avoiding the police's investigation methods, making it impossible for the police to investigate them.

From the perspective of criminal psychology, this is called the rational trait of the character, calmly committing crimes, calmly thinking about how to evade the pursuit of the police. In the words of the police, it is to have anti-investigation capabilities. Cover up the facts of their crimes by means of camouflage, elimination, and confusion.

As it turned out, the other side did a very successful job.

At least even if the police knew their modus operandi, they still couldn't exercise their authority over them because they didn't have evidence.

So they had to wait downstairs at the suspect to see if they could find any clues.

Xiao Liao said: "Then what should we do now, why wait?" ”

"That's all there is to it."

"When will that have to wait? They have finished killing people and accomplished their purpose, and no fool will show their feet again. ”

Fang Junlong groaned: "The reason why we didn't arrest Zhao Ruimin is because I know that it is useless to arrest him. This person will definitely die with a hard mouth and not reveal the slightest bit of tone. Moreover, he has a certain social status and legal awareness, and when the time comes to find a lawyer and dredge up the relationship, it is we who fall into passivity. But if he doesn't speak, it will be difficult for others to speak. We have been spinning around these two cases before, and the main reason is that Zhao Ruimin has cast a fog on the thinking of our police, and now that this fog has dissipated, the vision will be much clearer. No matter how clever the criminal methods are, remove the veil of mystery, that's all. So the breakthrough is not with him. ”

"Where is that?"

"Here." Fang Junlong pointed to his head and smiled mysteriously.

Xiao Liao was puzzled and was about to continue asking, but suddenly heard Zhang Yu say, "There is a situation." ”

Fang Junlong suddenly came to his senses and said, "After staring at it for so many days, she really couldn't hold it back. ”

Xiao Liao looked over, and in the distance, there was a woman wandering near the community. He didn't know the woman, and he wondered, "Who is she?" ”

Zhang Yu glanced at him and explained, "Her name is Zheng Yufeng, and she is a high school chemistry teacher. The school where she works is City No. 1 Middle School. And she is also the head teacher of Zhou Yunkai's class next door, although she does not teach their class directly, she has to pass by Zhou Yunkai's classroom every day. ”

Xiao Liao was not stupid, and immediately reacted and exclaimed: "She is the one who got the fingerprints of Hu Jie's case!" ”

"Be quiet." Fang Junlong glared at him.

Xiao Liao hurriedly fell silent.

Zhang Yu said in a low voice: "We have checked, and there is a businessman named Guan Zhijun in Jinfu District who was killed two weeks ago. The most important thing is that this Zheng Yufeng is the businessman's wife. And the two are divorced now, and the Fang team and the Wang team of Jinfu District are angry, and now they are waiting for the information from the Wang team. Now, it seems, is no longer needed. In the middle of the night, this woman ran to Zhao Ruimin's Fengtai community, and there was no need to wait for the results of the investigation, and a fool could guess that there must be an inevitable connection between the two cases. I think that the murderer of the Western restaurant poisoning case is very likely to be this Zheng Yufeng, she is a high school chemistry teacher, and she definitely has the ability to make hydrocyanic acid. ”

Fang Junlong nodded and said, "I asked from Lao Qiu, and he said that the preparation method of hydrocyanic acid is not difficult, and it can be made with urea." And it doesn't need to be very concentrated, a little bit, it can kill people. At the level of a high school chemistry teacher, there is no problem at all in producing hydrocyanic acid. ”

As they talked, they saw the woman wander outside the neighborhood for a while, but she didn't go in after all. It can be seen that she is a little preoccupied, extremely hesitant at the entrance of the community, and wants to go in, but she can't take a step, always going back and forth, like a headless fly.

She turned anxious, and Fang Junlong was even more anxious. If Zheng Yufeng goes in now, the police can completely arrest a scene. At that time, even if Zhao Ruimin doesn't speak, as long as he breaks through this Zheng Yufeng's psychological defense, then everything will be solved.

It's a pity that Zheng Yufeng walked around the neighborhood for nearly half an hour, but he just didn't go in. In the end, after a long hesitation, he finally chose to leave. Let the three policemen sigh and lose one of their best opportunities.

Xiao Liao said with a constipated expression: "There's something wrong with this woman, she walks around the gate of the community for half a day in the middle of the night, and she can't go in." ”

Zhang Yu shook his head and said, "It's a pity, if she goes in, we will have a breakthrough." ”

Fang Junlong pondered for a while, but said, "It's not without gain,"

Xiao Liao said discouragedly: "What harvest? ”

Fang Junlong shook his head and didn't speak.

But in his opinion.

Tonight's harvest is no less than catching the real murderer.

Because.

It's not far from the truth.