Click! Click!
Outside the house, a group of forensic tracers, carrying boxes and copying guys were waiting in full force. The house was covered with survey boards. Xingshe was squatting on the ground wearing light blue shoe covers, and the flashing lights were crackling.
Bu Chonghua walked out of the house to take a breath of fresh air. In the distance, he saw that the village was full of low-slung, illegal bungalows. The residents either crowded outside the cordon in twos or threes, or stretched their necks and looked out the window, curious. Arguments erupted one after another.
Xiaobeizhuang was originally an empty village. In the past two years, due to the expansion of the urban fringe, a preliminary village economy has gradually developed, but generally it is still a group rental for migrant workers and waste pickers. According to the last registration report of the local police station, there were about 200 households in the village, but Bu Chonghua knew that in some suburban villages with extremely high mobility and poor living conditions, the numbers registered by the police station were basically not accurate.
There were no children in the crowd, either swaddled babies or teens and a half. That may be because the children who have not yet grown into the labor force after being released from breast milk are left behind in their hometowns.
Bu Chonghua sighed inaudibly, and suddenly saw Wu Yu sitting in a police car with the door open not far away smoking a cigarette. When he walked over, he saw that he was actually watching a video on his mobile phone:
"If you put aside your responsibilities and name as a police officer, if you put aside the so-called belief and loyalty... If you are still alone now; do you dare to reappear, stand in front of me like you did back then?"
"What are you looking at?"
"Hey," Wu Yu raised his head, "Why are you suddenly scaring people?"
Wu Yu would be frightened, it would be like seeing a ghost in broad daylight. In this world, it is estimated that only Bu Chonghua could approach him without being discovered.
"Why are you still looking at this?" Bu Chonghua asked.
"Just take a look." Wu Yu pressed the video stored in the album on his mobile phone: "I don't understand what he means. Want to recruit me? Want to kill me personally? Or both? I wish I could single-handedly run up to him and go one-on-one."
Bu Chonghua suddenly had a strange feeling. As absurd as it may sound, it's as if... the sharks are alluding to it.
In this world, only you and I are hostile to each other, one-on-one, no one else.
He didn't express this weird feeling. "What kind of person do you think a shark is?"
"Intellectual quotient and talent are very high, arrogant, strong desire for control, like to discuss philosophical topics, what absolute freedom and political framework and so on. Maybe when the boss becomes a certain level, the thinking will not be in the same realm as us. Wu Yu smiled, "Actually, I didn't pay much attention to him. After getting along for a few days, the arrest operation failed."
"How did it fail?"
"I even took a knife and slapped him on the ground, but it still fell short... Sigh!" Wu Yu put away his tattered mobile phone, got out of the car and stretched out, sighing, "If I had taken a quicker step, maybe I would have I can also get a detachment leader Dangdang today.”
This is actually a weird thing. The well-known "shark" in the dark web world makes the most vicious criminals fear, fear, and dare not disobey, and makes the well-trained Interpol stalk but find it difficult to get ahead; I don't know how many radars there are every day. The server was trying to find his footsteps, but he was trying to use various methods to lead Wu Yu, hoping that he would stand in front of him again.
The villain BOSS, who seems to be regarded as a strong enemy by all kinds of superheroes, is searching all over the world for the passerby A who used a fruit knife to smash himself to the ground, but passerby A threw the fruit knife and hurriedly rushed to work on the early bus. .
Every day, tens of millions of bitcoins flow into and out of the account of the shark, if he knows that he is destined and the only opponent in this life actually only cares about the thousands of dollars in field allowances, he does not know how he feels.
Bu Chonghua was silent for a moment, and suddenly asked: "If there is such a day, do you want to fight him one-on-one?"
"Fuck you, are you kidding me, running to fight the big boss on the dark web?" Wu Yu said in shock, "It's almost the same as kneeling down and begging for mercy, isn't it bad to live?"
Bu Chonghua: "..."
Bu Chonghua laughed dumbly. At this time, he heard Rao Da, the head of the trace examination room, running from a distance, "Hey! Hey!" He waved his hand and said loudly, "Detachment Bu! Come and have a look!"
"How is it?" Bu Chonghua immediately strode over.
Rao Da leaned over and supported his knees to take a breath, and then straightened up, wondering: "It can basically be assumed that it was the scene of the crime, but there is a problem."
"what?"
"Too clean, nothing."
Bu Chonghua was taken aback.
This one-bedroom house made of bricks and cement was built by a local farmer in Xiaobeizhuang. There are many self-built veneer buildings and handshake buildings in the local area, but small bungalows are rare. After the building was completed, the owner rented it out to a couple who were migrant workers, and the two of them privately subletted it as a partition, and then rented it out to "Sanqi", leaving nothing but a note and a few cash.
"After the murder, the corpse was bundled with wires prepared in advance, put into a woven bag, and then splashed all over the floor and walls with bleach and detergent. In this way, on the one hand, the bleach will quickly wash away the blood on the spot, even if someone enters the house. The inspection can also be covered up a little; on the other hand, hypochlorous acid will react with the luminol solution, so that even if there is no blood at the scene, the luminol will still shine, thus interfering with the judgment of the criminal investigators.”
"However, hypochlorous acid volatilizes in a few days in a dry environment, so when we are making luminol, the luminol reaction is still very violent, and you can see that the ground and walls are covered with large spray-like bloodstains, and the cracks in the walls. There are still a few drops that haven't been cleaned out." Lao Rao pointed to the two trace inspectors in the corner, and was concentrating on using the beam to extend the reverse direction to simulate the blood-splatter shape: "We will let them extract DNA samples to compare with the victim. , but judging from various clues, it is basically that the crime scene did not escape."
In fact, Bu Chonghua already had a hunch: "So when you say it's too clean, you mean..."
"Yes." Section Chief Rao said, "there are no fingerprints, no footprints, no teeth marks, and no biological evidence of the murderer. The toilets and paper baskets are clean, and there is no body fluid left in the preliminary investigation. According to the victim, there is no resistance and injury. Judging from the circumstances, I don't think the murderer was injured and bleeding when committing the crime. All in all, it's terrifyingly clean."
- I don't mind letting the police know that I killed people in this house, you know who I killed and you know how I killed you, but you will never find my name.
Now the survey came and went, the house was crowded with people, but this square inch of land fell into silence.
"Has the portrait of the suspect described by Diao Jianfa, Li Hongxi, and the couple who are subletting migrant workers come out?" Chonghua asked in a low voice after a while.
"The drawing has been drawn, and it is being sent to the experts of the Municipal Bureau for improvement." Rao Da carefully observed Bu Chonghua's reaction, for fear of accidentally touching his flashpoint in this precarious state: "Once it is confirmed, we can send Announcement of assistance, as long as… as long as…”
As long as the police can find out the name of the murderer with the code name "Sanqi", otherwise only the suspect's own mother and wife may be able to recognize it based on a sketch that is a thousand miles away.
"I see." Bu Chonghua waved his hand and said lightly, "You can do your job, I'll take a look for myself."
Rao Da was fortunate that he had escaped the crisis of facing the anger of the detachment leader, and hurried to work.
Bu Chonghua stood in the busy crowd and looked around.
"Sanqi" rented this room purely for the purpose of killing people. He prepared a woven bag filled with nitrogen fertilizer in advance, and after the killing, he took Chen Yuanliang's mobile phone and ran to a fertilizer factory dozens of kilometers away to leave a record of the signal exchange of the base station. , which all speaks to his formidable counter-reconnaissance abilities as a murderer. If it wasn't for Wu Yu's discovery that the wires were old and new, and if Bu Chonghua hadn't used the fading of the paint to delineate the radius of the throwing distance, the crime scene might not have been discovered by the police in the next few years.
So when the well-trained murderer is completely covered, not even the urine in the toilet, not even a glue-stained handprint, where did the police extract his DNA
What is even more absurd is that even if "Sanqi" is caught for other crimes in the future, what evidence will the procuratorate use to prosecute him for having entered the crime scene
"Wu Yu!"
Wu Yu was standing beside the two trace inspectors in the corner, watching them pointing at the bloodstains on the wall: "Look, Xiao Wu, when a blood drop hits a plane at an oblique angle, what is the difference between the length of the trace and the angle of inclination or the speed of the bloodstain's movement? Proportional, the greater the force, the smaller the blood drop... When we use the beam to reconstruct the scene, we should pay attention to the fact that the target height after the reverse extension is higher than the actual height, this is because the spray trajectory of the blood drop moves in a parabolic motion, and the longer the distance is. The bigger the error is…”
"Wu Yu!" Bu Chonghua emphasized.
"Thank you," Wu Yu thanked the two elder brothers of the trace inspectors and walked over quickly: "What's the matter, leader?"
Bu Chonghua glanced at his colleagues around him and asked in a low voice, "Didn't you tell me to teach you how to solve the case, why did you turn around and find someone else?"
Wu Yu was taken aback, "So you can also analyze bloodstain patterns?"
Bu Chonghua said, "Although I don't..."
"It's amazing!" Wu Yu didn't hear it clearly, and said with sincere admiration: "As expected of you, you can do anything!"
"..."
Bu Chonghua lowered his head to clear his throat, and said with a calm expression: "When... Of course it will, what's so difficult about it? I'll teach you later."
Wu Yu looked at the leader with a gleaming gaze. As soon as he opened his mouth to ask something, Bu Chonghua immediately interrupted him: "This is not the time to teach this. There is no biometric evidence left in this room, you accompany me. Take a walk outside the house."
Outside the house is a dusty dirt road, and every door is closed. Teenage children, barefooted and yelling at each other, followed far behind them, poking their heads curiously, and the entire urban-rural joint village was immersed in a weird and exciting atmosphere.
"We don't build a road here," Wu Yu coughed twice, covering his mouth with his fist, "It's choking."
Not to mention the stubble just now. Bu Chonghua raised his chin toward the road: "—It's not cheap to build a road. It's a village that has documents to be emptied. Where can I allocate funds for them to build it?"
"How much does it cost to build a road here?"
"It's hard to say. First of all, it depends on whether the subgrade is stable in water, ash or slag. One square meter of concrete will cost three or four hundred dollars. If it is C25 strength, 3 meters wide and 15 cm thick, plus excavators, Bulldozers and concrete mixers cost at least 200 yuan per meter, without adding labor." Bu Chonghua smiled: "So the ancients said that building roads and bridges is a great virtue."
Wu Yu nodded thoughtfully, and after a while he couldn't help but say: "Your price is too expensive. If you are building a cement road, if the roadbed is leveled and the cement is poured down, there are 50 yuan per meter. In fact, the requirements are not so high. "
Bu Chonghua's first reaction was fifty yuan per meter? Can people leave after the road is repaired
Wu Yu took two steps forward, looked around at the low cement buildings around him, exhaled and muttered, "... It's time to build a road."
Behind him, Bu Chonghua took out his mobile phone, opened it, and quickly entered a WeChat message: [I urgently need a professional book on blood spatter pattern analysis, please borrow it, thank you.]
The WeChat group of Class XX of the XX-level Investigation Department of the Criminal Court, click and send.
Love makes people learn and progress.
He put away the phone, only to hear Wu Yu turn his head: "No fingerprints or footprints of the murderer left in the house?"
"Is there no preliminary investigation?" Bu Chonghua simply repeated what Section Chief Rao had just said, "Judging from the murderer's skilled murder behavior and extreme care in cleaning up traces, this person must have a criminal record, and may even be a criminal. Fugitive. If his fingerprints or DNA can be found, there is a high probability that his real identity information can be found in the database, but now it is stuck at this step.”
Wu Yu nodded and nodded, unable to think of any ideas, so he lowered his head and lit a cigarette.
They went around half the village and turned back to the small bungalow from the other direction, and suddenly smelled a faint smell from afar. Wu Yu raised his head and looked over there sensitively. Bu Chonghua followed his gaze and saw an open circle made of cement under a half-down brick wall, which was somewhat similar to an old stove. It was full of garbage that was more than half the height of a person; several women were carrying garbage in plastic bags and threw them into the mountain of garbage that had already sprung up.
The two stood at the same time thoughtfully and looked at each other.
"Hello, I'm sorry." Bu Chonghua stopped a woman, "How often do you collect garbage here?"
The woman didn't understand his question at all: "Huh? What did you say?"
Bu Chonghua repeated it several times, only to understand in the dialect of several people on the other side that there are still several "garbage collection stations" like this in the whole village, because this was originally an illegal settlement, and there was no sanitation. The station is in charge of them, so I can only find waste pickers in the village to take scooters and push the garbage to the Beidao Village Landfill, which is half an hour away. The frequency of cleaning is once a month.
"Once a month." Wu Yu murmured while standing by the garbage dump.
Bu Chonghua stood beside him: "Diao Jianfa mentioned in his statement that the broker he sent to Shark was offering cigarettes, so the murderer should have smoked..."
Smoking means throwing cigarette butts, throwing cigarette butts means saliva on the filter, and saliva means—
The two of them looked at each other, and invariably looked at the terrifying, half-rotted mountain of garbage with a strong odor. They saw stinky water flowing out from the bottom of the cement circle, criss-crossing the ground, and mosquitoes and flies buzzing back and forth in the air. .
Wu Yu patted Bu Chonghua on the shoulder, objectively and soberly: "Director Wang should really want to kill you this time."
"..."
A man should have a sense of responsibility, and a criminal investigation detachment leader should have his own beliefs and responsibilities. Bu Chonghua gritted his teeth and took out his mobile phone, and dialed the contact person - Wang Ertu.
"Hello? The surname is Bu?" As soon as the phone was connected, a fiery shout suddenly erupted from the other side: "Meng Zhao said that you asked people to hide all the braised egg sausages of your detachment so that I wouldn't take it. What's the matter? What's wrong with eating your eggs? You donkey want to unilaterally destroy the bilateral trade and customs union treaty in the Nancheng Public Security Bureau area that we signed last month?!"
Wu Yu: "..."
Bu Chonghua: "..."
"Jiu Ling." Bu Chonghua calmly said to the phone, "We haven't seen you for a long time. I really want to invite you to dinner tonight."