Detective: Open your eyes, I am handcuffed in the interrogation room

Throughout the history of criminal cases, there are all kinds of cases.

Those who are cruel to their parents and those who are ruthless to their children. Family ethics are often very fragile in the face of complex human hearts. As a criminal police officer, I am actually used to it.

Of course, there are also cases of mutilation by the next generation. There are many examples of such cases involving grandmothers and granddaughters. The idea of ​​​​preferring sons over daughters is still deeply rooted in rural areas today.

However, Gao Xiaofei's situation is quite special.

First of all, the Gao family is local. Gao Xiaofei's grandmother, Lou Meiying, is a cultural intellectual with a secondary education. She has been a teacher for many years and she still has some rationality.

This information is fully presented in the dossier, and everyone in the research team already knows it.

Secondly, excluding the daughter from a foreign marriage, Gao Xiaofei is Lou Meiying's only remaining direct relative. If Gao Xiaofei dies, Lou Meiying will truly become a loner and lose her last comfort.

Therefore, if Gao Xiaofei's death is related to Lou Meiying, then the motive must be very sufficient.

Looking back on all Gao Xiaofei's experiences, it seems that only the fire in junior high school can be used as a direction for inference.

"Fire? Is there something wrong with that fire?"

It was Zhuge Cong who spoke.

Others were reminded, their minds opened, and their brows furrowed.

The biggest change in the lives of grandparents and grandchildren was the fire. Lou Meiying lost her son, daughter-in-law and grandson, and Gao Xiaofei lost her parents and younger brother. This was a devastating disaster for a family.

Gao Xiaofei can now grow up smoothly and be admitted to Suicheng University, which is considered the only luck among misfortunes.

Chen Yi nodded: "I am thinking about the fire. Based on our hypothesis, if Lou Meiying is a suspect in the poisoning case, then the motive must come from the fire. For example... Gao Xiaofei directly or indirectly caused the fire."

Qin Fei asked: "Team Chen, if the fire was related to Gao Xiaofei, why did Lou Meiying take action now?"

Chen Yidao: "Let's analyze it bit by bit, don't be anxious.

"Just now we have assumed that the fire was related to Gao Xiaofei. Is this reasonable? Of course it is reasonable, and it is very reasonable, because Gao Xiaofei was a troubled girl when she was in junior high school."

"In their teens, adolescents' psychological development is the fastest and most dangerous. If they are not properly guided, it will be difficult to control their future development direction."

"Shi Yiqing mentioned that Gao Xiaofei's father beat her and she usually received less attention at home. This is very serious for a rebellious girl in junior high school."

"You should all have experience. Middle school students lack certain knowledge and do things based on their own likes and dislikes. If she had lit up flammable materials at home because of dissatisfaction, this would definitely have happened. It was not intentional, and there would have been more anger. A little, but the fire is ruthless, and the tragedy that follows is beyond human control. "

"Today, the investigation of fires has become very mature. Since the public security department and fire department found no traces of arson at that time, it can be indirectly proved that no one intentionally caused the fire. Assuming that Gao Xiaofei accidentally started the fire, after experiencing flashover or deflagration The whole family except her was burned to death. This incident will have a great impact on Gao Xiaofei, and the subsequent changes are normal. "

Several people listened carefully to Chen Yi's words and basically understood what the other party wanted to express.

What is flash burning? Combustible gases burn out in a flash when exposed to an open flame.

What is deflagration? Combustion propagating at subsonic speeds.

Many people have questions about fires. Fires in homes obviously do not spread very quickly and they have enough time to escape from the scene. Why do so many tragedies happen? The reason is the phenomenon of flashover and deflagration.

After a fire occurs, combustible substances diffuse in the air. When a critical point is reached and specific factors are triggered, such as open flames, electric sparks, static electricity, etc., an extremely strong oxidation-reduction reaction will occur instantly, releasing a large amount of heat energy, and forming a very strong combustion phenomenon.

Whether it is flash fire or deflagration, strong shock waves and high-temperature gases will be generated, causing great damage and harm to the surrounding environment and people.

This is the real horror of fire. It is impossible to escape even if you want to.

As a criminal police officer, many people know these basic common sense.

Chen Yi continued: "Qin Fei just mentioned why Lou Meiying took action now. Based on the clues we have now, two possibilities can be extended."

"First, Lou Meiying had already taken action. The method of taking action was to make Gao Xiaofei suffer from chronic iron poisoning. Later, it was discovered that she was fine at all, so she chose trivalent arsenic."

"Second, Lou Meiying didn't know before. She recently learned that the fire was related to Gao Xiaofei. In grief and anger, she had the idea of ​​killing Gao Xiaofei to avenge her son and grandson."

"Considering both the motive and the conditions for committing the crime, Lou Meiying is actually the biggest suspect compared to the four Zhao Jianhui. Although we are only assuming, it is the most reasonable assumption."

After listening to Chen Yi's words, Zhuge Cong and the other five nodded with solemn expressions. Xia Lan's reaction was more obvious, with a look of surprise on his face.

She had never participated in front-line investigation work. At this moment, she was closely exposed to the analysis and discussion of the case, and faced the suspected truth that was difficult for ordinary people to accept. This had a strong impact on her soul.

In the past, she only listened to her colleagues talk about the cruelty of criminal cases, but now she has seen and experienced it with her own eyes. As a woman, she is reluctant to believe that a grandmother would cruelly kill her granddaughter.

Xia Lan didn't question it. She still knew how much she weighed. To position herself correctly, she was an auxiliary clerk in the research team.

Cheng Hanjun said: "If you have any suspicion, investigate it. Captain Chen, do you need to go through the fire situation immediately?"

Trace inspection is his strength. He may be able to find points that were overlooked and determine the real cause of the fire.

Chen Yi shook his head: "This is not the point. The point is the investigation of Lou Meiying. The cause of the fire is not important to us for the time being. Even if the fire is related to Gao Xiaofei, Lou Meiying can completely pretend not to know and see the person first to see what happens. what's the situation."

Based on reasonable inferences and multiple verifications, Lou Meiying is now only suspected. Who did this case cannot be determined at present.

It was already time for dinner. Chen Yi said that he would eat first, so they found a restaurant and simply ordered some home-cooked dishes.

The research team's daily reimbursement limit is still very sufficient, and Chen Yi will not "top up" with nothing to do.

During the meal, the topic couldn't be separated from the case. Zhuge Cong proposed that if Lou Meiying was also ruled out as a suspect, then the next direction would be to find a new suspect or continue to investigate Zhao Jianhui and the four.

Chen Yi did not participate this time and signaled the others to discuss on their own.

The first case is the starting point for the investigation team to work together. The requirement is that it must be solved. The members can increase tacit understanding and familiarity by discussing the case, which is very beneficial to the subsequent work.

Zhuge Cong: "A hypothesis is a hypothesis after all. It has logical rationality, but the ethical rationality is weak. Gao Xiaofei burned his whole family to death when he was in junior high school, and Lou Meiying poisoned her for revenge many years later. It still sounds a bit fantasy, but... anything It can happen, and it really needs to be checked.”

After speaking, he looked at Fu Guoyong: "Guoyong, you talk a little today."

Fu Guoyong had a good appetite and was eating a big meal. Hearing this, he responded: "You all want to be in front of me. I just listen."

Zhuge Cong smiled and ignored it.

Fu Guoyong is by no means a simple-minded person with well-developed limbs. His grades in the police academy are very good, and he is excellent in subjects such as criminal investigation and criminal science and technology, but he is slightly inferior in comparison.

Moreover, there are still backlogs of cases being investigated, which requires a more careful mind.

After dinner, Qin Fei asked for seven bottles of water to distribute. After Lin Chen opened it, he handed it to Xia Lan beside him naturally, which made Xia Lan slightly stunned.

She didn't think much, she took it with a polite smile, thanked her, and gave her bottle to the other person.

Qin Fei noticed it and looked at Lin Chen suspiciously, thinking that this guy was quite a gentleman, why hadn't he noticed it before.

"Let's go."

Chen Yi took a sip of water, stood up and motioned for everyone to work. Xia Lan went to pay the bill and get an invoice. Every purchase of the research team had to be recorded. She was responsible for these trivial matters.

Gao Xiaofei has been living at her grandma's house for many years. Several people drove over and knocked on the door upstairs.

The person who opened the door was a middle-aged woman.

"Who are you?"

Seeing a group of people standing outside, including a tall and thick man, the woman subconsciously became vigilant.

Chen Yi smiled: "Hello, City Bureau Criminal Police, is Lou Meiying here? We want to talk to her."

There is no information about the woman in front of her in the file, but it is easy to guess that Lou Meiying has lost her only granddaughter, Gao Xiaofei, and her family must be worried about her safety and need to accompany her frequently.

If nothing unexpected happens, this should be Shi Yiqing's mother, Lou Meiying's daughter.

"Please come in."

When she heard that the other party was a criminal police officer, the woman was slightly silent and let a few people into the room.

"Are you Shi Yiqing's mother?" Chen Yi asked.

The woman nodded: "Yes."

Chen Yi said oh, and when he walked to the living room, he looked at the balcony. There was a deck chair there, and an old lady was lying there quietly, tilting her head to look at Chen Yi.

Those eyes were lifeless, as if carrying endless sadness and sorrow, deep and hollow, without any brilliance. The wrinkled face might have been full of vitality, but now it was only old and tired.

The two looked at each other for a long time, and neither of them looked away immediately. Chen Yi was observing Lou Meiying, and the latter might also be observing him.

The light shone on Lou Meiying's face, leaving half a shadow because of the obstruction. Maybe it was preconceptions. Lou Meiying was somewhat scary in this state. Xia Lan, who was following behind, just glanced at it and subconsciously moved closer to her. colleague.

Regardless of whether she is the murderer in this case or not, her sorrowful demeanor and vague hostility make people reluctant to get close to her.

"Mom, the police are here, probably for Xiao Fei's case."

The woman walked to the balcony and said to Lou Meiying.

Only then did Lou Meiying look away, unwilling to pay attention, and continued to close her eyes to rest.

"I'm sorry, officer, my mother... has been in a bad mood recently." Shi Yiqing's mother was quite polite. The police had made no progress in a year, and even if she was dissatisfied, she did not show it.

Chen Yi said it was okay and asked if he could have a chat with Lou Meiying.

The woman asked Lou Meiying for her opinion, and the latter finally nodded slightly.

"I'll get you a glass of water."

Chen Yi stopped him: "Don't bother. Let's chat for a few words and then leave. We won't disturb you for too long."

He noticed that the kitchen had begun to prepare meals. After all, Lou Meiying was the victim's grandmother. Even if there was reasonable suspicion, she could not really be treated as a suspect.

What the facts are, we need to investigate slowly and not radically.

Moving a chair, Chen Yi sat next to Lou Meiying.

Zhuge Cong and the others were not idle either. They actively requested to visit Gao Xiaofei's room. Shi Yiqing's mother agreed. Everything there was still the same without any changes.

"Hello, my name is Chen Yi, from the Provincial Criminal Investigation Corps."

Start by introducing yourself.

Hearing that the other party was from the provincial department, Lou Meiying slowly opened her eyes, turned her head and looked at Chen Yi again, her eyes still unwavering, and no change in emotion could be seen.

"There's been a replacement." Lou Meiying's voice was a little hoarse, "This time, can we find the murderer of Xiao Fei?"

Chen Yi looked at Lou Meiying in front of him and thought about it. If Gao Xiaofei's death was really related to her, would he still have the desire to live after killing his only remaining granddaughter?

This depends on the individual and cannot be used as a basis for judgment. The older a person is, the more he cherishes his life.

Lou Meiying is still far away from turning seventy-five.

These are not things he should consider. That is a matter for the court. If the murderer is caught, the mission is over.

"This time, it will definitely work." Chen Yi said.

Lou Meiying: "Then I really want to thank you, young man, what do you want to ask me if you come to me? I don't know much about Xiao Fei. She is a very independent child."

Chen Yi: "Let's talk about the fire."

Lou Meiying frowned for a moment and slowly sat up from the chair, her wrinkled face became angry: "What does this have to do with Xiaofei's death?!"

Chen Yi said slowly: "What if it has something to do with it?"

Lou Meiying: "What exactly do you want to say?"

Chen Yi: "I haven't had time to check yet. Can you tell me exactly how the fire happened?"

Lou Meiying stood up directly and pointed in the direction of the door: "Young man, please get out."

Chen Yi also stood up and said: "I'm sorry for mentioning your sad past, but our police have been investigating Gao Xiaofei's case for a year, and so far we have gained nothing. We can only investigate Gao Xiaofei's past, which is our criminal police's responsibility." Responsibility and persistence, the investigation will not end until the murderer is found.”

"As Gao Xiaofei's grandmother, shouldn't you fully cooperate with our police investigation unconditionally? Or do you not want to catch Gao Xiaofei's murderer as soon as possible and have him accept legal sanctions?"

"Is the past more important, or the current case?"

Lou Meiying could not refute. She stared at Chen Yi with her cloudy eyes for a while, then slowly sat back in her chair.

"Fire? Oh, could the fire have something to do with Xiao Fei's death? You police officers are really powerful."

It can be heard that this is obviously not a compliment.

So far, Chen Yi has found no basis to increase Lou Meiying's suspicion and needs to talk more.

After all, it is human nature to resist the thought of remembering the fire.