8:20 p.m.

Outside a high-end community, Gu Chen, Officer Wang and Lu Weiwei just got out of the car and directly found the security room.

"Uncle, where does Han Dewen live?" Lu Weiwei pushed open the screen window and asked an old man with a fan directly.

"Han Dewen, Principal Han?" Hearing this, the uncle hurriedly sat up straight: "He lives in 3 buildings, it seems to be a ...... Room 1102. ”

"Do you even remember his room?" said Officer Wang, surprised.

It is not easy for the security guards in the general community to remember which building the residents live in, but it is estimated that it is rare to be able to remember the house number.

What's more, the residents in this community, at least more than 1,000 households, an old man in his sixties and seventies, come as soon as he opens up, and he feels that he can directly kill 95% of the security guards in the same city.

"I've been working here for almost 20 years, I don't know what is going on in anyone's house? Not to mention which family lives in which number, I know which family they have and what occupation, those who live in this community are either rich people or leaders, and no one can afford to offend, I am not clever and I can do it for 20 years without leaving?"

"Presumably, you should get a lot of benefits in the past 20 years, right?" Looking at the old man's flamboyant appearance, Gu Chen knew that the old man was guarding the door?

The old man grinned: "He is worthy of being a comrade of the police, and he understands people at a glance." ”

Gu Chen shook his head and continued to ask him, "Which of those 3 are they?"

"This is the building over here. ”

"Thank you. ”

After understanding the situation, Gu Chen directly led everyone to Room 1102 of Building 3.

When she came to the door, Yuan Shasha rang the doorbell first.

It didn't take long to hear a small broken step in slippers, tapping towards the door.

The door opened, and a little boy tilted his head to look at everyone: "Huh, brother policeman, why are you?"

"Liangliang?" Gu Chen looked at the little boy, suddenly remembered the matter of blood drawing, and suddenly his whole eyes were stunned, and he quickly asked him, "Han Dewen is your father?"

"That's right, my name is Han Liang, and my father's name is Han Dewen. ”

"Is he at home?" asked Lou.

Liang Liang turned his head to look at the toilet, and turned back cutely: "He's in the toilet." ”

"What about Mom?"

"Mom went out to buy soy sauce. ”

Lu Weiwei: "......"

"Okay, I'm just looking for your father, can I ask him to come out?" Lu Weiwei said with a little bit of grandeur.

Liangliang is a sensible child, and immediately ran to the door of the toilet and slammed the door twice: "Dad, come out quickly, someone is looking for you." ”

Looking at Liangliang's innocent appearance, Gu Chen really found it hard to imagine that when Han Dewen was in the interrogation room, he also said that he and his wife were divorcing, and their son belonged to his wife.

But now in a blink of an eye, isn't this family good?

And according to the staff of the blood station, Liangliang's father was just on a business trip, but when Gu Chen found him, Han Dewen was entertaining his friends at KTV.

It can be seen that Han Dewen is full of nonsense, and Han Dewen will come as soon as he opens his mouth.

"Who?"

With the sound of flushing in the toilet, Han Dewen walked out of the toilet.

When he saw Gu Chen at the door, Han Dewen's face froze, and he suddenly forced a smile and said, "Yo! Who should I be? It turned out to be Officer Gu, what's the matter?"

"Come with us. Gu Chen said.

Han Dewen's eyes lit up, and he was a little embarrassed: "This ...... The child was home alone. ”

"It's okay, Mom will come home right away. Liang Liang said.

In a word, Han Dewen's excuse for shirking was directly blocked.

Han Dewen's face was even more ugly, otherwise you would be a bad kid.

Seeing that he couldn't do it, Han Dewen could only push his glasses and reluctantly agreed: "That's okay, I'll go with you." ”

He looked at Liangliang and said, "Is Liangliang at home alone?"

"Okay. Xiao Liangliang didn't know where the police were going to take his father.

In my impression, all kinds of people come to the house to find my father, either to invite a drink or to eat, and Liangliang has long been accustomed to it.

But no matter what kind of person it is, only no police came to the door.

But this time, Liang Liang finally looked forward to the police brother he was thinking of, and he felt that his father was called away, which must be very interesting.

"Bang!"

The door was closed, and Han Dewen, who was wearing slippers, was directly taken away by Gu Chen and went to the interrogation room of the Furong Branch.

......

......

Interrogation Room 1.

Han Dewen looked at the familiar environment around him, and he looked even more embarrassed.

In one day, I entered the interrogation room of the police station twice, and I thought that there was no one left.

He looked up at Gu Chen, and said a little puzzled: "Officer Gu, what are you looking for me?"

"It's not a good thing anyway. Gu Chen said.

Han Dewen: ???

Is it so straightforward?

"Then you can get straight to the point. ”

I feel that I have no patience, I want to talk about this in the car just now, but I want to stop talking, I feel that the atmosphere in the car is depressing, and it is not suitable to talk about heavy topics.

"Do you know that Wan Yajuan died of suffocation?" Gu Chen asked him directly.

Han Dewen's eyes widened: "What...... What? Wan Yajuan is dead? This ...... It can't be, right? How is that possible?"

"Nothing is impossible. Lu Weiwei cooperated with Gu Chen, and also answered: "When we sent Zhu Huaiping's parents to his house, we found that Wan Yajuan was in the room, she had suffocated to death, the murderer should be you, right?"

"This ...... How can this be me?" Feeling that he had been wronged, Han Dewen hurriedly denied it: "This is definitely not me. ”

"It's not you, what are you doing at her house? People just died of their husbands, and you can't wait?" Officer Wang has always disliked Han Dewen, and he spoke with obvious personal emotions.

In his opinion, Han Dewen should have let him fall to the law in the last interrogation, but fortunately, he was able to speak well at that time, and the evidence on his side was insufficient.

There is only one option to let him go first, and then settle the score.

Retribution is retribution after all.

It wasn't even a short time before Officer Wang could bring Han Dewen back to the police station.

This is undoubtedly a slap in the face to Han Dewen.

Han Dewen smiled bitterly and said: "Comrade policeman, I don't know what you are talking about? I just heard that Wan Yajuan's husband died, thinking about her now, it should be very painful, after all, there is affection between us, so I want to go over to see her, I'm afraid she won't be able to think about it." ”

"I'm afraid she won't be able to think about it, so you give her sleeping pills?" Gu Chen said, and instantly scolded Han Dewen's remarks.

Han Dewen's face stiffened at the moment, he looked left and right helplessly, and said with a wry smile: "Comrade policeman, look at what you said, why do you tell me to give her sleeping pills?"

"You don't need to explain, has Wan Yajuan ever drunk water containing sleeping pills, you don't know when we are the police? Are you underestimating our police's detection methods?" Lu Weiwei also said seriously.

Han Dewen hurriedly waved his hand: "No, no, I didn't mean that, I mean, the sleeping pills may have been drunk by herself." ”

"But there are no sleeping pills in her room, and there is no cup for water, who would it be if you didn't take it away?" Lu Weiwei stared at him with sharp eyes.

Han Dewen was stunned for a moment, then he reacted, and immediately said with a smile: "Then I don't know, how do I know? I just went to see her and left." ”

"Hmph!" Gu Chen snorted coldly, and turned his pen in his right hand to prompt: "Okay Han Dewen, we won't tease you anymore, I can tell you very clearly that Wan Yajuan is not dead, and she herself has not taken the initiative to drink sleeping pills." ”

"And when you were in the room at that time, only you Han Dewen were present, who else would you do it?"

"Huh? no...... Aren't you dead?" Hearing the news of Wan Yajuan's suffocation and death just now, Han Dewen almost laughed out loud in his heart.

But now Gu Chen said that he was not dead, and the questions of truth and falsehood were thrown out one after another, so that now Han Dewen can't tell what is true and what is false?

"You don't believe it?" Gu Chen asked him.

Han Dewen patted his chest hard, and said with a wry smile: "I said comrade policeman, don't scare me." ”

"I didn't scare you, fortunately, we arrived in time to save Wan Yajuan's life, but I learned from her mouth that she only began to feel a little sleepy after drinking a glass of water you poured her, so that she didn't know how she lay in bed later. ”

"But one thing is for sure, and that is that you are always by her side before she goes to bed, so all the decorations in her room should be your masterpiece, right?"

"This ......" Han Dewen was a little weak-hearted, but he said bluntly: "You can say whatever you want, right?"

"You used your knowledge of physics to murder Wan Yajuan in real time, and those two parallel electric fans are the best proof of this. Gu Chen said.

"Hehe, electric fan?" Han Dewen couldn't help laughing twice, feeling that Gu Chen was joking with him.

"Police colleagues, you shouldn't be looking for me on purpose, right? That's right, I turned on the electric fan, and Wan Yajuan was indeed a little sleepy at the time, I asked her to go to bed, afraid that she would be hot, so I turned on the two electric fans. ”

"You're good enough. Listening to Han Dewen's own story, Gu Chen didn't go around the bend with him.

"You, a top student of physics, should know Bernoulli's principle, the greater the velocity of the fluid, the lower the pressure of the fluid. ”

Han Dewen was stunned for a moment, and bowed his head slightly: "No...... That's right, I know. ”

"Then you should also know that when two fans are parallel and blowing in one direction, it creates an air pressure in the middle of the ground. ”

"And the high-speed airflow makes it impossible for the outside air to come in, so the air in the middle zone is reduced, and Wan Yajuan can't wake up at all because she has taken sleeping pills and is in a deep sleep. ”

"So when two fans blow at her, it will cause her to suffocate to death, so I don't need to remind her, right?" Gu Chen asked again.

Hearing Gu Chen's words, Han Dewen was completely panicked now.

He didn't expect that a young policeman who looked ordinary would have such an amazing amount of knowledge.

He didn't expect that Gu Chen not only knew Bernoulli's principle, but also knew that when two fans were parallel and blowing in one direction, an air pressure would form in the middle zone.

These things should not have been in the hands of the police, but they were shown here by Gu Chen one by one.

At this moment, Han Dewen is like a swimmer who has been stripped of his bottoms, and there is no secret on him.

Seeing that Han Dewen was a little flustered, Gu Chen continued: "According to Bernoulli's principle, the greater the velocity of the fluid, the lower the pressure of the fluid. ”

The two parallel electric fans blow the air at the sleeping Wan Yajuan, the pressure is low in the place where the electric fan blows, and people in the place with low pressure are naturally unable to breathe normally, mainly because they can't inhale, so it will lead to suffocation. ”

"Because this principle is very simple, because inhalation requires the outside atmospheric pressure to be greater than the air pressure in the chest cavity, so that the outside oxygen can enter the human body and ensure the normal survival of the human body. ”

"And you made good use of these two electric fans at that time, which caused Wan Yajuan to be unable to breathe. ”

"I ......" Han Dewen just wanted to speak, but he stopped talking in an instant, he didn't know how to defend himself.

The main thing is not knowing what to justify.

Gu Chen knew what he wanted to say, so he explained all the key clues one by one: "You know, when people are uncomfortable, they will resist."

Because once this operation is too long, Wan Yajuan's various organs will be exhausted, and she will feel unwell all over her body. ”

"And where she is located, the air velocity is very high, and according to Bernoulli's principle, the atmospheric pressure will decrease, and when it is reduced to about the same as the air pressure in the human chest, there will be very little oxygen entering the human body, so it is easy to cause suffocation. ”

"So in order to achieve your goal, you made her take sleeping pills, so that she could not wake up when she was uncomfortable, so as to achieve your goal of killing. ”

"You want Wan Yajuan to suffocate to death in the room unknowingly, so as to leave you an alibi to prove that you have nothing to do with Wan Yajuan's death. ”

Looking at Han Dewen's desperate eyes, Gu Chen said again: "But you have calculated everything, and you didn't calculate that our police would bring Zhu Huaiping's parents to arrive, do you think that Wan Yajuan's body may be found in a few days, or a week later, at this time, your alibi may be more sufficient." ”

"But alas, it seems that God doesn't want to help you. ”

"Officer Gu, I'...... I must have been wronged. Han Dewen didn't know how to defend himself, so he could only sit with the last stubbornness.

Before Gu Chen could speak, Lu Weiwei beside her said directly: "Let's not talk about this first, you instigated Wan Yajuan to kill Zhu Huaiping, what about this matter?"

"What...... What? I instigated Wan Yajuan to kill Zhu Huaiping? ”

Listening to Lu Weiwei's words, Han Dewen finally breathed a sigh of relief, and said with a laugh: "I said comrade police, you are unlimited, everyone knows that Zhu Huaiping is driving dangerously on his own initiative, he has suicidal tendencies, and he wants to kill the people in that car." ”

"But then, he narrowly escaped with his life, and then he committed suicide by jumping off a building right under your noses, as you know, and I wasn't there at the time. ”

"That's it, you still say that I instigated the killing? Hehe, I don't know what kind of courage you have when you say that?"

"Benzodiazepines and barbiturates, don't they sound familiar?" Gu Chen said.

Han Dewen was stunned, and his eyes changed when he looked at Gu Chen.

"If it's not clear, then I'll say two more, diazepam tablets and alprazolam tablets always know, right? Aren't these all prescription drugs that you asked Wan Yajuan to pretend to be sick and prescribe from the doctor?"

"And Wan Yajuan has already explained all this information, and in accordance with your requirements and instructions, let him take it for a long time without Zhu Huaiping's knowledge. ”

Seeing that Han Dewen was stupid, Gu Chen also said bluntly: "Zhu Huaiping has depression, from slight depression at the beginning, to excessive suicide later, in fact, you have all played a role in fueling the troubles. ”

"As a top science student in a prestigious university, you won't know that depressed patients can't take these drugs at all, and it will urge depressed patients to overly implement some ideas that they once dared not execute at certain moments. ”

"Because these tranquilizers and sedatives are known for triggering depression and exacerbating the condition. ”

"You are doing this just to kill Zhu Huaiping. ”

Listening to Gu Chen's stern reprimand, Han Dewen was stunned.

He looked at Gu Chen with a dead face, his eyes full of panic.

Officer Wang couldn't stand it anymore, and shouted angrily: "I've never seen such a ruthless guy like you, on the surface, Zhu Huaiping's death, and Wan Yajuan almost suffocated to death, these incidents that seem to have nothing to do with you are actually planned by you behind your back." ”

"If we hadn't woken up Wan Yajuan in time, maybe by now, she wouldn't have been able to believe that you wanted to kill her with your own hands, you are really a demon. ”

"It's not just demons, it's scum. Lu Weiwei couldn't help but complain.

The interrogation atmosphere at the scene suddenly became tense.

The light hit Han Dewen's face, making him look particularly terrifying.

A Sven Wen high school vice principal, turned into a demon with a human face and a beast's heart, which made everyone unimaginable.

Han Dewen's psychological defense collapsed, and he knew that as long as Wan Yajuan was alive, he would definitely not be able to escape.

Wan Yajuan did not die this time, which means that her painstaking and real-time plans collapsed overnight.

"Haha. Han Dewen sneered twice, he tried to rub his back, he was crazy, he was unwilling.

Soon, Han Dewen's hairstyle began to become messy.

He looked up at Gu Chen, sneered and said, "I thought I was a master of time management and could wander among women, it seems that I was wrong, and it was a big mistake, I was still ruined in the hands of women after all." ”

"Why did you kill Wan Yajuan?" Gu Chen turned his pen with his right hand and asked him.

"Because she's really going to marry me. Han Dewen said.

Lu Weiwei frowned slightly: "Isn't that what you want?"

"Nope. Han Dewen shook his head: "I'm just talking, but that Wan Yajuan is serious, I love my wife very much, and I love my children very much, I lied to Wan Yajuan, I just coveted her, and I didn't think about divorce and being with her." ”

"Because, I'm the vice principal of No. 6 Middle School, so I'm a public figure, right? The divorce is too big a blow to my future, and I can't afford it. ”

"And everything I have today is something I have worked hard for, I can't afford to lose, and I will never divorce Wan Yajuan. ”

"Then what do you say about the medicines you instigated her to prescribe to Zhu Huaiping?" asked Lu Weiwei.

Han Dewen snorted coldly: "I just said it casually, but I didn't expect that woman to take it seriously." ”

......