Young detective case book

Luo Ziyang shook his head: "I was going to the study at the right time, and I happened to meet Uncle Zhong."

Uncle Zhong nodded hurriedly: "Yeah."

"It doesn't mean that you didn't go upstairs and set fire afterward." Sun Qisen said coldly.

Not paying attention to his accusation, Luo Ziyang said nonchalantly: "What you said is very reasonable, but you can't prove that I did it."

"If you did it, I will definitely find evidence." Sun Qisen warned, and turned his gaze to Uncle Zhong, "What about you? What did you do this morning?"

Uncle Zhong wiped off the oil and sweat from his face, with a stiff expression: "I, I also got up at six o'clock, and have been preparing breakfast in the kitchen."

"Obviously, no one can prove your actions?"

Uncle Zhong sighed helplessly, shrinking his thick body, looking very depressed.

Clearing his throat again, Sun Qisen's gaze fell on Ou Yuchen: "Ou Yuchen, it's your turn to speak."

Ou Yuchen said calmly: "I have time to witness."

"Oh?"

"I stay with Suye."

Sun Qisen frowned: "What do you mean?"

"It literally means, around seven o'clock, I was sleeping in Suye's room."

As soon as he finished speaking, the atmosphere in the living room suddenly became very strange, and even Uncle Zhong and Meng Yanming showed surprise expressions.

The middle-aged policeman looked at him and Su Ye more.

"It turns out that the relationship between the two of you is so good that you share the same bed." Sun Qisen smiled meaningfully, fiddled with the pen in his hand, and asked slowly, "Suye, is what Ou Yuchen said true? ?”

Suye nodded.

"Do you two often sleep in the same room?"

"No, this is the first time." Ou Yuchen replied.

"Why?" Sun Qisen raised half of his eyebrows.

Ou Yuchen said lightly: "I woke up suddenly at three o'clock in the morning and wanted to go downstairs to drink some water. Passing by Suye's room, I found that he was having a nightmare, so I went in to accompany him."

He thought about it quickly, and decided to hide Suye's sleepwalking.

Since Suye had been hiding it all along, he felt that he shouldn't speak out.

After all, it is not a comfortable thing to be looked at by others with strange eyes.

"Such a coincidence?" Sun Qisen expressed doubts.

"It's such a coincidence." Ou Yuchen shrugged.

"Even if the two of you are in the same room, there's no guarantee that the other party didn't leave quietly while you were fast asleep, right?" Sun Qisen said slowly.

Ou Yuchen shrugged: "If you want to think like this, there is nothing we can do."

"It just so happens that you slept in Suye's room, and it just so happened that someone set fire to your room. If it's simply explained as a coincidence, no one will believe it." Sun Qisen slowly spit out every word as if chewing, looking into his eyes With a sharp, mean sharpness.

"I'm only responsible for stating the facts. Whether you believe it or not is up to you." Ou Yuchen said.

Sun Qisen lowered his face and raised his voice: "Ou Yuchen, I warn you, you'd better tell the truth!"

"I'm telling the truth."

"If you have such an attitude, we won't be able to talk here. I'll invite you back to the police station for coffee, and then we'll have a good talk." Sun Qisen threatened with a stern tone.

"If you don't have an arrest warrant," Ou Yuchen announced without changing his face, "I think I have the right to refuse to go anywhere with you."

"Ou Yuchen!" Sun Qisen stared angrily, wanting to say something more.

Suye interrupted suddenly, coldly interrupting him: "Group Leader Sun, please don't trouble Ou Yuchen.

The direction of your investigation is simply wrong. He is not the murderer, but the murderer's target. "

"What did you say?" Sun Qisen was taken aback for a moment, and then showed an even more annoyed look, "Don't talk nonsense!"

Ye Zihui opened his mouth, as if he wanted to say something, hesitated for a moment, then swallowed it back.

The middle-aged policeman coughed lightly: "Whether it's nonsense or not, we might as well listen to it."

Su Ye said blankly: "Yesterday, oh no, it was early this morning.

Ou Yuchen slept in my room on a temporary basis.

No one knew about it except the two of us, and of course neither did the murderer.

Therefore, the person who set fire in Ou Yuchen's room did not target Lan Jie, but Ou Yuchen.

Ou Yuchen is used to getting up around six o'clock every day, and Sister Lan will go to his room to clean after 06:30.He didn't sleep in his own room today and got up late again, that's what happened to Sister Lan. "

"It's too far-fetched for you to attribute everything to a coincidence, isn't it?" Sun Qisen snorted coldly.

"Are you an idiot?" Suye retorted expressionlessly.

"Suye!" Sun Qisen was completely enraged, he gritted his teeth and said, "No matter how much you want to protect him, there must be a limit!"

Ignoring his anger, Suye said in an indifferent tone: "What reason does Ou Yuchen have to kill Sister Lan, and why does he burn all his belongings in order to kill her?

He stayed with me when the fire started and I can attest to his innocence. "

"Oh," Sun Qisen snorted, sneered mockingly, and the end of his voice rose slightly, "You prove that he is innocent?"

"Yes."

Sun Qisen said slowly: "I remember the case of Zhang Hanyue's murder a year ago, you once gave false/testimony for him, suspected of obstructing justice.

You can do it the first time, who can guarantee that you won't do it the second time? "

"I don't need a guarantee, I just need to prove that the arsonist is not from the Su family, and that's it."

Sun Qisen squinted at him, and continued to ask in a contemptuous and frivolous tone: "Then, our young detective, how are you going to prove what you said?"

Not paying attention to his attitude, Su Ye asked: "As a result of your police investigation, how did Ou Yuchen's room be set on fire?"

"You don't need me to remind you, do you?" Sun Qisen sneered, "About this issue, we can only draw conclusions after the investigation/inspection report comes out."

Suye slowly raised her eyes and looked at him: "I can give you a deduction first, you might as well try to look in that direction."

"Oh?"

"If my guess is correct," Suye said, "it should be Molotov gas/oil/bomb."

"Momo what?" Sun Qisen frowned, he didn't hear clearly, let alone understood.

"Molotov gas/oil/bomb is a kind of gas/oil/bomb that is made of very simple materials and can burn by itself." Suye explained, "Usually plutonium is used to make gas/oil/bomb, but Molotov The gasoline bomb is different, it is a bomb/bomb made of potassium, sulfur, and sugar.

The principle of starting a fire is very simple. Drill a hole in the wall of the light bulb and stuff the gas/oil/bomb into it. As long as the light is turned on, it will explode with a bang, causing a fire/disaster. "

The middle-aged policeman next to Sun Qisen spoke again abruptly, looked at Suye, and asked, "Is the production method of this kind of gasoline/oil/bomb very complicated?"

Su Ye shook his head: "On the contrary, because the materials are easy to find, as long as they understand the principles, children can make them.

As for why the fire was so violent, I judged that the murderer put nitrates in a hidden part of the room. "

"Nitrates?"

"Yes, some nitrates with relatively stable chemical composition will not cause explosion/explosion, but they can also play the role of/combustion/agent." Suye explained, "Nitrate itself has no smell, it is hidden in a hidden corner , are difficult to detect.

Yesterday afternoon, on the carpet in Ou Yuchen's room, I did see a little white powder.

I didn't pay attention at the time, but now that I think about it, it should be the sulfate accidentally sprinkled by the murderer. "

Sun Qisen stared at him, showing a secretive smile, and said slowly: "Let's assume that your guess is correct, the nitrate was placed in Ou Yuchen's room before yesterday afternoon.

So, can we also speculate that the petrol bombs should have been arranged before yesterday afternoon.As long as someone turns on the light, it will explode/explode with a 'bang', causing a fire? "

"Yes." Su Ye said.

"Could it be that Ou Yuchen hasn't turned on the light since yesterday afternoon?" Sun Qisen showed that contemptuous expression of catching the other party's pigtail, "Doesn't it make sense? Didn't he go to your room after three o'clock in the morning?"

Ou Yuchen said unhurriedly: "I did turn on the light, but I used the bedside lamp. When I went in and out, I switched it on and off, and I never turned on the ceiling light."

"Do you think what you said is sensible?"

"I am telling the truth."

"Fact?" Sun Qisen almost laughed out loud, "Could it be that you didn't turn on the ceiling light by chance?"

Ou Yuchen sighed: "No way, it's just such a coincidence."

"Ha, then I have to say that you are really lucky, you can go buy a lottery ticket." Sun Qisen snorted disdainfully, and then asked Suye, "You said that before yesterday afternoon, the murderer had already arranged the gasoline/bomb and Accelerator.

Then can you tell me, if he is not from the Su family, how did he get in?How did you leave again? "

"I suspect that the baby's body delivered yesterday morning was a cover." Suye said after being silent for a while.

He thought of the man with the black umbrella.

"Oh?"

"The murderer sneaked in while we were all in the kitchen, circling around the corpse," Su Ye said.

"You mean, when some of us policemen were investigating here yesterday, he swaggered in? Absurd! Absurd!" Sun Qisen yelled.

"I will prove to you that everything is possible." Suye said, stood up, and walked towards the stairs.

"Hey, why are you going?" Sun Qisen shouted in surprise.

"Help you find the answer. If you want to know, just follow me." Su Ye said without turning her head.

Sun Qisen and the middle-aged policeman looked at each other, exchanged glances, and stood up together.

They all left, and Meng Yanming, Ye Zihui, Luo Ziyang, Uncle Zhong, of course, all followed behind at the same place.

Su Ye walked quickly, along the spiral staircase, and went directly to the second floor.

Without thinking, he came to the door of Ou Yuchen's room. He stopped, stood there, and looked inside for a full ten minutes.

"What are you looking at?" Ye Zihui couldn't help asking.

Su Ye didn't say a word, turned around and went downstairs from the external stairs.

He walked very slowly, stopping at almost every step to take a serious look.

After descending the stairs, he began to circle around the small building again, circle after circle, gradually expanding the area outward.

Sun Qisen and the others were confused.

Not only staring at the ground, Suye also changed the angle from time to time, looking at the small building and the grass, shrubs, trees, and fences opposite.

When he finally reached the junction of the stone slab and the grass, he walked more slowly, almost staring at the weeds that were gradually turning yellow, pacing back and forth on the grass.

Then he took a gravel path, picked up his pace suddenly, and followed it through bushes and trees until he came to the edge of the fence.

Staring at the weed-covered, rain-spattered ground, he looked for a while and said, "Get a shovel."

Although he didn't know what his intentions were, Luo Ziyang left in response, and quickly ran back with a shovel.

Suye took the shovel, dug back and forth on the grass a few times, tapped a spot with his feet, and threw the shovel to Luo Ziyang: "It's here, dig."

Luo Ziyang dug two or three times in a daze, and suddenly felt that the head of the shovel touched something hard. He froze for a moment: "There seems to be something underneath."

Su Ye said: "There is indeed something, you move slowly and shovel off the floating soil on it."

Remove the floating soil, revealing a black wooden plank, square and not big, only fifty or sixty centimeters square.

Suye signaled Luo Ziyang to pry open the board.

Underneath is actually a hole about half a meter in diameter, just enough for a person to pass through.

It was so dark that I couldn't see the bottom of the cave, and I didn't know how deep it was.

"It's quite creative, it actually came in by digging a hole." At this moment, even Ye Zihui, who was relatively slow to react, suddenly realized, and murmured.

"It's not surprising," Su Ye said expressionlessly, "A few years ago, a bank vault was stolen in T city.

The thief just dug the tunnel directly under the bank's vault, and the theft was successful.

It is said that those thieves used to dig coal mines. "

Sun Qisen scratched his head depressedly, but said nothing.

He couldn't say that he also knew about this case, but he didn't remember it all of a sudden, did he?

After discussing with the policemen, Sun Qisen led the team and went down into the cave together.

Ye Zihui also warmly greeted Su Ye, but Sun Qisen gave him a stare, but Su Ye shook his head and refused without hesitation.

He had no interest in going down the drain.

***

What's in the city's sewers?Garbage, sewage, rats, cockroaches?

In a news report not long ago, a pile of human bones were found in the sewer of a certain city, as clean as if it had been brushed with a steel brush.

I don't know if it is the masterpiece of snakes, insects, rats and ants, or after time and bacteria have been devastated, it has completely rotted and evaporated.

After a forensic examination, it was confirmed that it belonged to the same man, and the case is still pending.

National A-level wanted/wanted criminals, several backbone members of a criminal gang of murder, robbery, theft/theft, rape/rape, once hid in the sewer for several years, and successfully escaped the police's siege and interception time and time again.

The cave in the backyard of Su's house is connected to the sewer.

Sun Qisen and the others also found a "person" in the sewer, a person who could hardly be called a "person".

His eyes were deeply sunken into the sockets, the whites of his eyes turned a weird green color, his gums were black, and the flesh on his body was almost rotten, pitted, like tattered stickers.

Small white maggots were densely packed, wriggling and crawling on the rotten meat.

His body has become a nest of maggots.

Even after seeing many disgusting and appalling corpses, Sun Qisen and the others couldn't help being moved.

However, their emotions were meaningless to that person.

When they found him, he was lying on his "bed"--if you could call it a bed if you put a door on two wooden boxes.

Holding a knife in his right hand, both the throat and the main artery were cut, and blood flowed all over the place. His body was still warm, but his breathing had completely stopped.

he died.

There is no doubt that it is suicide.

It is estimated that he heard the police walking and talking in the sewer, and knew that he could not escape, so he simply died.

Sun Qisen and the others thoroughly searched his "home" - a small open shack made of broken boards, old newspapers and waste paper shells.

There's almost nothing to see, so it's easy to find what you're looking for, a tool box, right next to the bed.

Inside were knives, shovels, sulfates, potassium, sugar, rubber gloves, surgical gowns splattered with blood, and other criminal tools, as well as a digital camera and a video tape.

With solid evidence, it can be concluded that he is not only the murderer in the Su family arson case, but also the culprit in Ji Jiaze's dismemberment case.

A few days later, according to the DNA test and the identification of relevant personnel, it was confirmed that he was Xiaodong, an orphan from the Home of Love Orphanage who disappeared half a year ago.