The scene suddenly became quiet. Everyone looked at each other and began to think deeply.
Indeed, Gu Chen's question made everyone feel that the fire and various doubts at the scene made this small secret room look extremely strange.
No one can give exact answers to the questions Gu Chen asked, not even the landlord and driver can give a sufficient reason.
Lu Weiwei carefully observed the change in the driver's expression, and then asked him calmly: "The arrangement of your room like this makes it feel like you knew in advance that this was a flammable room."
"Moreover, there is not enough cat food and there are goldfish as companions. This is hard to understand no matter how you look at it."
"Coupled with the inexplicable cause of the fire, it makes me feel that the fire seemed to have been premeditated."
"This... you can't talk nonsense about this." The driver's eyes were stunned and he quickly retorted: "Anyway, I have no idea what all this is about."
"That means that all this is the result of your wife's arrangement?" Gu Chen directly extended the explanation based on the driver's words.
Because based on Gu Chen's understanding of the environment, it seems that this room and the pet cat are more like a bureau.
Many doubts can be confirmed, and this room seems to be preparing for a fire.
Especially this pet cat, which was so hungry that it was only skin and bones, made Gu Chen's doubts about this house reach a climax.
The driver was unable to refute at this moment, but after a few seconds of hesitation, he nodded and admitted.
Gu Chen then walked to a burned sofa and looked at the various burned wood, sponges, and the burnt springs. He wrapped a handful of powder in a tissue and held it in his hand, then handed it to everyone to see.
"Look, everyone, what is this?"
"Burned powder?" Xu Zhenggang was stunned for a moment.
"No, no, this seems to be lime powder." The fire brigade leader seemed to recognize the substance.
After Lu Weiwei and Yuan Shasha looked at each other, they both turned their attention to the driver.
The driver didn't realize it. After looking down carefully, he suddenly asked Gu Chen in confusion: "Comrade police, please stop showing off."
"What on earth is this thing? I really don't know. Now that you say it like this, it makes me even more confused."
"You don't need to continue to be confused." Gu Chen held the paper wrapped with powder in front of his eyes and said calmly: "What the firefighter said just now is absolutely correct. This is lime powder, and it is lime powder that has chemically reacted with water.
"
"Quicklime?" Yuan Shasha was the first to ask.
Lu Weiwei was also stunned for a moment, then immediately answered: "Quick lime and water, these two things seem to be discussed together as soon as they are mentioned."
Gu Chen nodded slightly and asked, "But have you ever thought about why this lime powder is in the room? What does this have to do with the fire?"
"Could it be that the chemical reaction between quicklime and water caused the fire?" The firefighter leader suddenly frowned, and it seemed to be interesting.
Gu Chen’s previous guidance prevented everyone from grasping the key points of the cause of the fire.
So now it seems that Gu Chen has given a substance that is quite close to the truth.
Xu Zhenggang frowned, looked at Gu Chen and asked, "Gu Chen, there is lime powder in this room for no reason. Did someone put it here intentionally?"
"Does that need to be said?" Gu Chen glanced at the driver, then turned his attention to the security guard of Kaitian Property and Lu Weiwei, and said calmly:
"Just now, my colleague Xiao Yuan has investigated the surveillance with the property manager and confirmed that no strangers have sneaked into this villa in the past few days.
Then there is only one possibility. The driver's wife deliberately placed these lime powder here."
"Wha... what? My wife did it?" The driver was suddenly stunned and didn't react for a long time.
"Yes!" Gu Chen looked at the driver, his expression obviously no longer as confused as before.
Being able to find this evidence, it can be said that Gu Chen probably knows the answer in his heart.
"Junior Brother Gu." Lu Weiwei thought of this and felt that it seemed a bit simple, so she couldn't help but said: "Then according to your opinion, with this thing, the source of the fire can be found, that is caused by quicklime and water, right?"
"Quick lime and water? Is it so powerful?" The property security guard listened to Lu Weiwei's words, and he was also full of doubts: "Why do I feel that it will only release a lot of heat, but if it ignites an object, is this the case?
"Of course it is possible." Gu Chen also smiled calmly: "It mainly depends on whether the temperature it generates can reach the ignition point of the object. If it can, it can ignite the object."
The scene suddenly became quiet, and everyone turned their attention to the lime residue next to the sofa.
Yuan Shasha and the firefighters squatted down and carefully checked the amount of lime powder in the room.
"Senior Brother Gu." Yuan Shasha looked back at Gu Chen and said, "With the amount at the scene, is it really possible to ignite objects?"
Gu Chen nodded and said: "That's right, because the main component of quicklime is calcium oxide. It is a white solid in shape and is fire-resistant."
"But when it reacts with water, it releases a lot of heat or absorbs moisture in the humid air."
"And when quicklime is added to water, you will see that the entire water boils immediately, and a lot of steam comes out, generating a lot of heat, and the temperature will be very high."
Seeing everyone's eyes focused on him, Gu Chen added: "Did you know? In fact, many people use the process of adding water to quicklime to generate a lot of heat, put eggs in it, and boil eggs with lime.
."
"But usually, by the time the egg is taken out, the whole egg is already cooked."
"And this phenomenon is easily seen when building houses or construction sites in rural areas."
"This method of heating is a more environmentally friendly method, because during the entire process, apart from heat release, no other harmful substances are produced, and energy is not wasted."
The fire brigade leader nodded and said, "What you said makes sense. I've seen it before, using the process of adding water to quicklime to generate a lot of heat, and then adding eggs into it. The temperature is indeed quite high."
Listening to the fire brigade leader's words, Gu Chen suddenly knelt down, picked up a burnt wooden stick from the ground, and walked to the wall.
Gu Chen used the wall as a blackboard and wrote the chemical formula "CaO H2O=Ca(OH)2" for the reaction between quicklime and water on the wall.
Then he turned around and said to everyone: "Actually, there are two reactions. One is to pour water into quicklime powder, and the other is to put quicklime into water."
"Haha." The property manager couldn't help laughing. When he saw everyone staring at him with strange eyes, he smiled calmly and said: "Comrade police, this... isn't this the reaction of water and quicklime?
Isn’t it the same whoever joins?”
"You are wrong if you think the same thing." Gu Chen also looked at the formula on the wall and said lightly: "Just like the first reaction phenomenon, water slowly boils and evaporates, turning into gray and turbid in the middle.
All the water reacted fully."
"Then... what about the second phenomenon?" Xu Zhenggang, who was holding his chin with his hands on his chest, suddenly felt like a scumbag.
"The second type..." Gu Chen looked at everyone and then said: "The second phenomenon is that the lime gradually dissolves and generates heat, and only then will all the quicklime react fully."
Picking up the blackened wooden stick in his hand, Gu Chen drew a circle around "Ca(OH)2" and then said: "This is the chemical element after the reaction. It is a strong electrolyte, but its solubility is not very good. It should be considered
Only if it is slightly soluble will the above-mentioned phenomenon be different.”
"If the two are taken in strictly equal amounts and react fully at the same time, the phenomenon will be close to the first situation."
"The reactive substances in my hands are more like pouring water into quicklime."
"To reach the ignition point of an object, it mainly depends on the temperature it generates. If it is possible, the object can be ignited."
"Wait a minute." The fire brigade leader suddenly interrupted Gu Chen's words. He looked at the blackened walls around him and said after looking around for a week: "So, this is the real cause of the fire. It is because the water introduced quicklime.
Inside, a large amount of temperature is generated and heat is released."
"When all this reaches the ignition point of the object, it will ignite the surrounding flammable materials, and then cause the fire."
After putting all these things together, the firefighter leader looked at Gu Chen and said with a smile: "Brother policeman, I didn't expect you to know so much, but the problem is, if these quicklime is the homeowner's wife, he has already prepared it.
"
"But why did the fire start just today? You have to know that his wife and children have been away from home for a week, so it is completely impossible to complete such an operation."
Gu Chen nodded slightly, then looked at the dead cat body and said, "The driver's family did leave for a week, but I didn't say that this chemical reaction was caused by his family!"
"It wasn't his family that did it, could it be..." Lu Weiwei looked at the dead cat's body and then doubted it: "Could it be that cat that did it?"
"That's right." Gu Chen answered directly, then pointed at the dead cat body and said, "This fire was indeed caused by this cat."
"But it was not voluntary, but after it was manipulated and evidence was created to prove that the operator was not at the scene, it became a scapegoat inexplicably, because the driver's wife was behind all of this."
"Me...my wife?" The driver was so frightened that he shook his head repeatedly and quickly retorted: "How can you say that? What does this have to do with my wife?"
"And you said this cat caused the fire. How did it do it?"
"You want to know?" Gu Chen asked.
The driver nodded fiercely: "I really want to know. At least I have to figure out why my house suddenly lit up. At least how did the water and quicklime react suddenly?"
"It's because of the cat food." Gu Chen pointed at the dead cat's body with jio and said, "Because when your wife was preparing the cat food, she didn't prepare enough for about ten days, but probably only for three or four days."
"So after the kitten ate all the cat food, it became extremely hungry, so it set its sights on goldfish."
"That's right." Lu Weiwei picked up the fragments of the fish tank on the ground and said in surprise: "It might have been filled with goldfish, but now the goldfish are gone. It was obviously eaten by the cat."
"However, if there is no source of fire or signs of warm electricity in the room, the gas switch is turned off tightly, and there is no timer ignition device, then the fire can only be caused by this cat."
Glancing at the burned bookshelf next to her, Lu Weiwei smiled and said, "If I guessed correctly, this goldfish bowl must have been placed on top of the bookshelf before."
"When the kitten eats the small amount of food given to it and becomes so hungry that it can't help it, it will grab the fish tank on the bookshelf."
Lu Weiwei said this, and Yuan Shasha quickly answered: "So, the final result is that the fish tank fell down and was poured on the quicklime."
"When quicklime meets water, it undergoes a chemical reaction and turns into slaked lime. The heat released in this process ignites the books on the bookshelf and the surrounding flammable materials."
"That's right." Gu Chen snapped his fingers and smiled happily: "So the result is that although the kitten ate the goldfish in the fish tank, it also poured the water in the fish tank on the quicklime, so it was
Caused this fire."
"And this house happened to be airtight. After the kitten ate the goldfish, although it filled its stomach, it was unable to escape from the room, so it suffocated to death. Later, the fire burned its hair, and it
Become what you are now.”
Looking at the dead cat body at his feet, Gu Chen added: "If I guessed correctly, the goldfish that was eaten into the cat's belly should not have been digested. If you want to confirm whether what I said is true, you only need to dig it open
A cat’s belly can tell whether it’s true or false.”
This chapter is not over yet. Please click on the next page to continue reading! The fire brigade leader looked at Gu Chen and immediately took out a multifunctional saber from his body. Then he squatted down and cut the burnt cat belly with the blade of the knife.
Plane open.
Not long after, the firefighter leader found the remains of a goldfish in the cat's stomach.
"Haha." The firefighter leader turned to look at Gu Chen and smiled calmly: "Brother policeman, you are absolutely right. These goldfish were just eaten into the cat's belly and have not been digested yet.
."
"Oh my God." Xu Zhenggang on the side also froze for a moment when he saw Gu Chen reconstructing everything that happened in the room based on a small amount of evidence at the scene.
The look in his eyes when he looked at Gu Chen changed now, and he couldn't help but said: "Gu Chen, you can use this thing to deduce such accurate results, you...what exactly is in your kid's head?"
ghost?"
Gu Chen also smiled calmly: "Use your brain more often. When you stay in such a suspicious environment for a long time, you will also have such keen observation. It's just a professional habit."
"Brother police." At this moment, the fire brigade leader who put away his multifunctional saber couldn't help but give a thumbs up and said:
"You have given me a lot of experience today. You can deduce things like this. It feels like everything here can't be hidden from your eyes. You are really quite powerful."
"Haha." Listening to the fireman leader praising Gu Chen, Lu Weiwei couldn't help but be very happy, but she also said angrily:
"It's interesting what you said. You don't want to ask around. My junior brother Gu is in the Furong Branch of Jiangnan City. Who doesn't say he is awesome? Is this going to make a big fuss?"
"Is that because I am ignorant?" The fire brigade leader also smiled.
But while everyone was silently unraveling the mystery of the fire, Gu Chen suddenly turned his attention to the driver and walked up to him and asked:
"The facts are very clear. If your wife was the last to leave the villa, then it was your wife who started the fire."
Looking the driver up and down, Gu Chen asked suspiciously: "Could it be... that you and your wife conspired to start this fire?"
"Absolutely... absolutely not." Also shocked by Gu Chen's words, the driver was stunned and quickly defended himself: "I don't even know what my wife did at home?"
"You have to know, this is my home, why should I burn my house down? Am I sick?"
"Gu Chen." Xu Zhenggang looked at him and reminded softly: "What he said is right. Who is so willful that he would burn down his own house for fun?"
Gu Chen hesitated for a few seconds and quickly said to the driver: "In this case, you call immediately and ask your wife to go home quickly. When you come back, go directly to the Furong branch."
"And now you must go to Furong Branch with us and explain the situation clearly. We need to compile a detailed investigation report."
"But I still have to run Didi tonight." the driver said.
Lu Weiwei also said angrily: "I told you, it's true. Your house has been burned down, and you still run away from Didi? Do you know that this matter is serious?"
"Fortunately, it only burned down your family. If other residents were endangered, how many lives might have been lost?"
"Intentionally setting a fire and endangering the lives and property of others is a felony."
Listening to Lu Weiwei's scolding, the driver did not dare to speak. He was also confused at the moment and did not know how to solve the current problem for a long time.
Gu Chen glanced at the property manager beside him and said, "In this case, you are responsible for sealing off the scene and not letting anyone enter the room."
"Don't worry." The property manager also patted his chest and promised, "I'll get some things later and seal the door."
"Very good." Gu Chen nodded, then looked at the driver and said, "Master, please drive another Didi trip and come with us to the branch."
…
…
10:30pm.
Furong Branch, Interrogation Room No. 1.
After a night of sorting out, Gu Chen basically recorded the driver's situation completely.
The driver's original name was Xu Youcai. He was originally a wealthy man, but now it seems that not only has his career been frustrated, but his only house has also been burned down by this ruthless fire.
Throughout the night, Xu Youcai spoke honestly and explained everything he knew about the situation.
It proves that he really doesn’t know what his wife’s situation is, and she wants to deliberately cause this arson incident.
After receiving the summons from the police, Xu Youcai's wife also traveled all night and night, and finally took a taxi to the Furong branch at 4 o'clock in the morning.
After asking questions all the way, a middle-aged woman wearing a white down jacket and slightly haggard makeup trotted all the way to the Criminal Investigation Team Three.
At this moment, there are only three folding beds open in the office.
Gu Chen, Lu Weiwei and Yuan Shasha were lying there, squinting slightly.
It was only after hearing the knock on the door that Gu Chen slowly opened his eyes and looked up at the person at the door.
"Who are you?" Gu Chen stood up and asked her.
"I am Xu Youcai's lover. You asked him to call me." The middle-aged woman took the initiative to step forward and said.
"Oh, you sit down first." Gu Chen sat up, then punched Lu Weiwei and Yuan Shasha beside him, and then they stood up stubbornly.
Afterwards, the middle-aged woman sat blankly on Officer Wang's chair, while Lu Weiwei and Yuan Shasha stood aside.
After Gu Chen finished adjusting the camera, he also moved the stool in front of the woman, then opened the transcript and said: "Let me introduce myself first. I am Gu Chen from the Criminal Investigation Group Three of Furong Branch. This is my colleague Lu Weiwei. This is
Yuan Shasha."
"Hello."
Lu Weiwei and Yuan Shasha also nodded slightly, which was regarded as a simple acquaintance with the middle-aged woman.
"Do you know why I asked you to come back?" Gu Chen turned the pen with his right hand and asked.
The middle-aged woman nodded: "Yes...it's because my house was burned down."
Gu Chen suddenly stopped spinning, raised his head and said, "What's your name? Tell me your ID number."
"Oh, my name is Hao Tong, and my ID number is..."
Hao Tong was extremely nervous at the moment and quickly informed Gu Chen of his complete personal information.
After recording some notes, Gu Chen asked again: "Ms. Hao, this is the specific situation. Your house suddenly caught fire tonight. After all the efforts of the fire fighters and tonight's heavy rain, the main body was finally saved.
architecture."
"But all the interior decorations have been burned, including the cat you raised and the tank of goldfish."
It was also when Gu Chen mentioned cats and goldfish, Hao Tong's eyes glazed over for a moment, and then he quickly calmed down.
Since the driver Xu Youcai only informed that his villa was burned down, he provided very little information to Hao Tong.
Coupled with the summons from the police, Hao Tong also traveled at night and at night, and he knew nothing about the situation here.
But Gu Chen's deliberate question just now startled her, as if those little things in her heart were suddenly known.
Listening to Gu Chen's words, Hao Tong also smiled lightly: "Thank you for your hard work, comrade police. I really don't know how to thank you."
"If you really want to thank me, you shouldn't set that fire." Lu Weiwei, who was standing next to her, also said angrily.
Hao Tong was stunned, looked at everyone with confusion, and then couldn't help but ask: "Comrade police, what do you mean by this? My house has been burned down."
"I know, of course you don't need to remind me, you were the one who started the fire." Lu Weiwei also continued what she had just said.
"Haha." Hao Tong couldn't help laughing. He looked at Yuan Shasha and Gu Chen on the side, and then retorted: "Comrade police, you...did you make a mistake? You said I set the fire? I don't
It’s in Jiangnan City.”
"Furthermore, I also heard my husband call and tell me that there was a fire in our house and the house was gone. He asked me to come back quickly. So I rushed here all night long."
Looking at Gu Chen's indifferent eyes, Hao Tong added: "As soon as I return to Jiangnan City, I will come to your Furong branch without stopping for a moment. My parents can testify."
Gu Chen nodded slightly: "So?"
"So?" Hao Tong looked at Lu Weiwei and said angrily: "So this lesbian, indiscriminately said that I set the fire, and am I sick? She came all the way to Jiangnan City at night to burn down her house for fun.
?”
"Then you run back all night and night, and then you get a call from your husband and run back? Am I sick?"
Also furious at Lu Weiwei's words just now, Hao Tong crossed his arms to his chest and tilted his head, as if he wanted to argue with Lu Weiwei.
Lu Weiwei also said with a smile: "So, what's going on with the quicklime in the closed room of your house?"
Hao Tong's ears perked up, his expression froze for a moment, and he glanced at Lu Weiwei secretly.
"Also, your cat has been hungry for many days, right? You didn't prepare enough cat food at all. Your cat is starving to the skin and bones, but you put a tank of goldfish on the bookshelf.
Is this the rhythm when the cat food is not enough for the goldfish?"
Listening to Lu Weiwei's words, Hao Tong's face was startled, and his eyebrows frowned slightly: "You...what are you talking about? What cat food and lime?"
"Stop pretending, Hao Tong, we all know it." Yuan Shasha also glanced at Gu Chen beside her, and then said to Hao Tong: "My senior brother Gu has restored the fire scene based on the scene environment."
"You should know that this cat simply doesn't have enough cat food to eat, so you deliberately placed a fish tank with goldfish on the bookshelf. When the cat got hungry, he climbed up the bookshelf and knocked over the fish tank.
When the goldfish is swallowed to satisfy their hunger, it is also the time when the water in the fish tank is poured on the quicklime.”
"You don't know the reaction between water and quicklime, right? It is precisely because of the release of a large amount of heat that it reaches a certain ignition point and ignited this flammable house."
"And we have checked that in addition to a large number of flammable objects next to the bookshelf, this sealed room is covered with flammable wallpaper. This is the reason why your home was burned down."
"Because from head to toe, this is all a conspiracy carefully laid out by yourself, right?"
"I……"
Hao Tong suddenly froze.
Her eyes changed when she looked at the three of them.
It was also when Yuan Shasha explained the situation to Hao Tong based on Gu Chen's investigation results, Hao Tong was so frightened that he shivered.
It seems like he traveled here through the night just to convict himself?
"I... where is my husband?" Hao Tong took out his cell phone in a panic and said shivering: "I... I don't want to talk to you, I... I want to find my husband, I want to call him."
Just as he finished speaking, the phone rang from Gu Chen's desk to the number Hao Tong had just dialed.
Gu Chen also put down his writing pen, then took Xu Youcai's mobile phone in his hand, shook it, and said: "Don't worry, your husband Xu Youcai is also staying at Furong Branch. After you explain clearly, we will arrange for you to meet him."
he."
"Wha...what?" Hao Tong was lying on the seat in a daze, muttering: "You...you caught him too?"
"So...why did you set the fire?" Gu Chen said.
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