Three o'clock in the morning.

In the meeting room of the village committee.

Yao Zhenhua, Daxiong, and Wang Shuai formed a temporary interrogation team, with Wang Shuai serving as the record, and Nobita holding two positions - interrogation and simultaneous audio and video recording.

Fu Yingxin changed from being handcuffed to being handcuffed, and then handcuffed her to the stool.

"Let's go." Nobita lightly pressed the portable audio and video recording device and said.

"The person being interrogated, we are the police handling the case of the Dongchen City Public Security Bureau, my name is Yao Zhenhua, this is Wei Shixiong, and Wang Shuai, a police officer from the Dongshan District Bureau. Because you are suspected of intentional homicide, now the three of us will form an interrogation team to temporarily interrogate you at the scene of the crime, and you must answer truthfully. "Did you hear me?" After Yao Zhenhua finished speaking, he took out his police officer ID card and asked Nobita to show Fu Yixin the police ID cards of the three of them.

Fu Yixin lowered her head, pulled the long hair on her forehead behind her ears with her hand, glanced at the police officer card displayed by Nobita, turned her head to the side, and didn't speak.

"The person being interrogated, give a detailed account of your identity?" Yao Zhenhua asked.

There was no answer.

"Fu Yixin, why are you pinching your children's necks and covering your daughter's mouth and nose?" Yao Zhenhua then asked.

Still no answer.

"Just now, what are you going to do to your daughter, Chen'er?"

Still no answer.

Judging from Yao Zhenhua's experience in handling cases, the suspect Fu Yixin has decided to remain silent to the end at this time.

Because, now Fu Yixin may think that the public security organs have no evidence to prove anything, and only caught today's situation, but it is an attempt, if she can be confused as a whole, with this one act alone, the consequences will not be too serious. In the end, if her daughter issues a letter of understanding to her in order to protect her mother, and she pretends to be crazy and stupid again, the punishment may be lighter.

Yao Zhenhua, who is upright, can't rub sand in his eyes. He has his own principles in handling cases -- "In every case he investigates, he must investigate the facts clearly, and not let go of or wrongfully accuse a suspect." ”

Yao Zhenhua's principle of handling cases is contrary to science in theoretical analysis, because "it is necessary to investigate the facts clearly" and "not let go or wrongfully accuse a suspect" cannot be absolutely realized theoretically, so it is not scientific.

However, his outlook on life and values forged his inner beliefs. To be a human being, you must have a spiritual existence, not to mention that he is still a police officer.

Yao Zhenhua concluded that interrogating Fu Yixin with conventional routines now no longer works. He thinks that he now has to sort out the clues, factors, facts, etc. of this case, hoping to find out the internal logic.

Five minutes passed......

Ten minutes passed......

"Team Yao, Team Yao?" Nobita shouted Yao Zhenhua twice.

"Oh......" Yao Zhenhua was shouted by Nobita from his thinking world to the real world.

"Fu Yixin, Yuan Yong, Guo Xiatu, and Cao Fei were all killed by you, right?" Yao Zhenhua asked suddenly.

Da Xiong thought to himself, it turned out to be such a question, Guo Xiatu, Cao Guang and this case are a little bit unmatched, how could Team Yao ask this? There is also simultaneous audio and video recording.

"You want to kill your daughter Guo Chen, that's because Guo Chen has discovered your secret, and this secret is the method and process of your killing!" Yao Zhenhua is not only asking questions, but his language is beginning to have a bit of a scolding flavor, perhaps because "tiger poison also eats children".

Nobita didn't understand why. Wang Shuai was taking notes, he was puzzled, thinking that the sub-bureau had been in the bureau for two days, and he didn't know the cause of Yuan Yong's death, but a little girl knew the method and process of Yuan Yong's killing? N don't understand......

In fact, when Yao Zhenhua said that Guo Chen knew the secret, Fu Yixin's body trembled, this was not cold, but a stress reaction born from within the body.

"Fu Yixin, you still have to pay for it a long time ago, because your paper can't keep the fire. Even if Guo Chen doesn't report you in order to protect you, the police can find out the facts. ”

Fu Yixin ignored them at all.

"Why don't I give you a heads-up?" "Cao Guang is the next family of human traffickers, right? Cao Guang paid you to buy you home from the traffickers, right? "How did Cao Guang get under the wheel of the truck, do you know it?" "Although Guo Xiatu has stomach cancer, he must not have died of stomach cancer, you know this better than anyone else, but you lied to me, right?" "By Yuan Yong, you've already practiced your methods, right?" "Guo Chen must ......"

"No, no, no......" Fu Yixin looked very excited, kept repeating the conversation, kept shaking her head, and began to cry after a while.

"Fu Yixin, you have to control your emotions." "Your daughter is even more excited than you now, and I guess she's trying to protect you right now."

Perhaps, Fu Yixin felt guilty, and when she heard Yao Zhenhua talk about her daughter, she didn't cry much.

Yao Zhenhua understands very well that there are only two keys to this case, one is Fu Yixin and the other is Guo Chen. Guo Chen is still a child, even if she has been greatly wronged and hurt, she will still endure it compared to losing her mother. Therefore, Guo Chen's key that can open the door to the case is temporarily invalid.

Yao Zhenhua speculated that if the three cases can be solved, only Fu Yixin confesses herself, otherwise the case of Guo Xiatu and Cao Guang will not be decided, because it is no longer possible to find direct evidence.

However, Cao Guang's case also involves the unjust case of the truck driver and the issue of overturning the case, and the case cannot be closed in a vague way.

In Yao Zhenhua's view, these issues and the facts of the case must be investigated clearly. But now, how to advance the investigation of the case? The key point is still Fu Yixin.

At this time, Luo Haotian and a group of people came over.

Luo Haotian asked Yao Zhenhua out and reported to Yao Zhenhua alone that they asked Guo Chen about the situation.

"Captain Yao, Guo Chen probably didn't say anything to protect her mother." Luo Haotian said helplessly.

"Great!" Yao Zhenhua was excited and said.

"Captain Yao, Guo Chen didn't ...... What's the good news? ”

"Because she didn't say anything, it proved that my guess was right." "We can think about it, Guo Chen was almost strangled to death by her mother, but she still has to protect her mother, why?"

"Why?" Luo Haotian asked with a confused expression.

"Because, only when her mother is about to suffer more grievances and injuries than she has suffered, can he endure such great grievances and injuries, but he has to protect the person who has hurt her - her mother."

"What Captain Yao means is that if Guo Chen says what she knows, she may lose her mother."

"Yes!"

"It seems that Yuan Yong did not die a normal death."

"Yes, not only Yuan Yong, but also Guo Xiatu and Cao Guang."

"Ah, how is that possible?"

"Let's go."

"Where to go?"

"Go search Yuan Yong's home."

"Search for what?"

"You'll know when you get there."

Yao Zhenhua arranged for Daxiong, Wang Shuai, and Director Meng to watch Fu Yixin at the village committee, and everyone else went to Yuan Yong's house to search.

When he came to Yuan Yong's house, Yao Zhenhua asked Yuan Bao: "Yuan Bao, is your father's health good?" ”

"It turned out to be good, but soon after my dad married his stepmom, his health deteriorated, and he often had gastroenteritis." Yuan Bao replied.

"I see." "Yuan Bao, find out all the medicines your father took."

"Before, you have taken the medicine away for testing, and now there is no medicine at home." Yuan Bao replied suspiciously.

"Then let's find a medicine that can make people have diarrhea or gastroenteritis, or something."

"Good ......"

Looking for ......, I found dawn until I found it, but I didn't find anything corresponding.

Yao Zhenhua stood in the courtyard and thought, could it be that all those things were thrown away?

At this time, Guo Chen got up and came out, she looked at Yao Zhenhua, hesitated, and trembled, slowly and wandered towards Yao Zhenhua.

Yao Zhenhua didn't pay much attention to Guo Chen because he was troubled by the search results.

"Uncle policeman, can you release my mother?" Guo Chen asked timidly.

"Oh, Guo Chen, it's early!" "It's not up to me to say what you're talking about, because once a person is suspected of committing a crime, the law will inevitably punish him accordingly." Yao Zhenhua looked at Guo Chen's red and swollen eyes and said.

"Uncle, come with me, I'll tell you something."

"Okay, let's go."

The two came to Guo Chen's bedroom, and Guo Chen closed the door. said: "Uncle, I know what my mother did her. At night, I didn't think about it clearly, I was afraid of losing my mother, and I couldn't sleep anymore, so I thought about it for a night, and I figured it out, I was worried that someone would be ...... in the future" Speaking of this, Guo Chen's tears flowed silently again.

She wiped her tears and continued: "I have a bottle here, which my mother usually uses to hold croton powder, and my father Yuan Yong has been suffering from gastroenteritis because he ate the croton powder that my mother put in his food. ”

Yao Zhenhua's heart knot was untied and smoothed.

"My father Guo may have also eaten croton noodles, because I was young at that time and didn't pay attention, but later I found out, and my mother explained that it was something to clear heat and detoxify. When I was older, I asked my teacher, and the teacher told me that croton is a laxative, which can be used scientifically to cure diseases and regulate the body, and if used improperly, it may lead to diarrhea, and more seriously, it may lead to death. ”

"I knew the seriousness, and I've been keeping an eye on it ever since. I picked up this bottle after my mom threw it away. ”

"Okay, I'll use this bottle. Guo Chen, you are a good boy, I admire your courage, you are doing the right thing. ”

"Okay, here you go."

"Guo Chen, in order to protect the fragile relationship between you and your mother, I don't tell her about it, do you agree?"

"I agree."

"Okay."

Yao Zhenhua returned to the village committee with the searchers. Director Meng found a few quilts and surrounded each of them with one, including Fu Yixin. In the room, a makeshift stove was lit.

Yao Zhenhua mobilized everyone's spirits and said, "Fu Yixin, look at what this is?" Yao Zhenhua put the bottle of croton powder in front of Fu Yixin.