Lanzhou ushered in the first snow of the year, and the blackened outline of the city was covered in silver decorated with crystal clear falling snow. Peerless independence at the intersection of heaven and earth, it appears pale, ethereal and unknown.

Luo Xiaoyi walked on the way to school at noon, the vast snow drifted in the world space without sound, everything stood silently under the snowflakes, after walking through a few buildings, the blue and red colors were transmitted, and several police cars were quietly parked on the road at the entrance of a dilapidated residential building.

Luo Xiaoyi walked over, sniffed, looked at the building thoughtfully, walked into the unit corridor, and walked up the stairs all the way.

Coming to the middle of the corridor, several policemen flickered around in the cramped unit, taking pictures and taking samples. Luo Xiaoyi looked at the room with the door open, but he didn't understand the point. At this moment, there was a sound of footsteps behind him, and when he looked back, several faces appeared in the corridor behind him, among which there was an acquaintance, who was Li Quan, the captain of the criminal police detachment.

"Yours again?" As soon as Li Quan saw Luo Xiaoyi, he subconsciously began to investigate.

"I just arrived." Luo Xiaoyi looked innocent.

Li Quan exchanged a few words with a few policemen at the door, and looked back at Luo Xiaoyi, "Want to see?" ”

"Everything is connected."

Li Quan beckoned, and Luo Xiaoyi followed.

As soon as they entered the room, the stench of the sky made everyone have nowhere to hide.

Everyone's focus was instantly focused on the dining table in the middle of the house. A huge fat man sat on the dining chair in an uncomfortable posture, did not greet everyone, but silently buried his face in an equally huge soup bowl.

As soon as everyone took a step closer to the fat man, they rushed out from under the dining table a bunch of unnamed corpse worms, spread over everyone's feet, and disappeared into the dark and dim room.

Everyone turned on their flashlights and carefully observed the fat man from different directions.

I saw the fat man's huge body hanging on the dining table, his face was pale, and the remains of dozens of grass snakes and dehaired mice loomed in the soup bowl where his head was immersed.

The whole house was stinking and weird.

Li Quan led the crowd to shoot around with flashlights, carefully observing the scene around the dining table.

On the lattice shelf of the cabinet next to the dining table, where the flashlight swept by, more than a dozen neatly arranged glass jars appeared in front of him, and by the light, he could see that they were filled with grass snakes that had not yet completely rotted, gray rats, and white-bellied toads.

Li Quan frowned, walked behind the fat man silently, and looked at the fat man's back condescendingly.

The others followed closer to look, but they couldn't open their eyes because of the sour smell, took a few steps back, and hurriedly put on their masks.

A sharp-eyed police officer spotted a rubber bucket under the table, beckoned everyone, pulled out the bucket, and looked inside, "Fuck! The bucket is full of vomit! The crowd covered their mouths and ran to the entrance of the stairway retching. It took a long time for everyone to return to the house.

Everyone frowned, looking at the fat man with complicated expressions.

Someone in the police force opened his mouth, "Team Lee, this is murder, right?" ”

"You mean, this fat man died of a heart attack?" Luo Xiaoyi asked with blazing eyes.

"It seems that some people are very dissatisfied with the fat man!" Li Quan smacked his lips.

"Fatty?" Luo Xiaoyi asked.

"That's it, this is the second fat man in this jurisdiction to be killed." Li Quan checked the fat man up and down without pause.

After Li Quan finished examining his body, he opened his mouth with a solemn face, "Notify the forensic doctor." ”

After speaking, he gave Luo Xiaoyi a look, Luo Xiaoyi nodded and left first.

During the afternoon cleaning, Luo Xiaoyi felt a glimmer of attention on the basketball court, took a leave, and ran to an uninhabited corner of the college garden corridor, just standing still. A young man appeared behind him, and it was none other than Memphisto.

"You went to a crime scene at noon?" Mephisto asked.

"Yes."

"This murderer is a devil in hell."

"Got it, and then what?"

"Go find it, kill it."

"I don't understand, isn't the essential job of the devil from hell to kill people, why kill it?"

"Even hell has rules, you can't kill humans casually, you get rid of it as soon as possible."

Luo Xiaoyi nodded, and Mephisto disappeared in front of the former.

When he returned home from school in the evening, Luo Xiaoyi opened the Lanzhou Evening News, and the headline of the local edition was the news of the murder of a well-known lawyer in the district.

At that moment, the pager rang. When I looked back, it was Li Quan.

"Have you read the report of the lawyer's killing?"

"Just saw."

"You come to the scene, I have something to show you."

Luo Xiaoyi put on a black down jacket, tightened the zipper and went out, accompanied by the rustle of footsteps on the thick snow, the orange street lamp projected on the splattered snow, stretching a red and white phantom, a taxi pressed out two on the snow-white road, pressed out the black marks of two tires rubbing, and stopped in front of Luo Xiaoyi.

The taxi stopped in a luxurious office building, and the building was still brightly lit in the city at night.

Luo Xiaoyi took the elevator to the scene of the crime, the lawyer's office.

The police were still busy with their own work, and Luo Xiaoyi soon saw Li Quan, whose face was still solemn. Step forward.

"What's that?"

"You go out and buy some barbecue, I'll treat you." Li Quan shouted, and a group of police officers went out.

The whole office suddenly became empty and airy, and it was alone.

On the beautifully woven Persian carpet, two large bright red letters appeared: "Greed! ”

Luo Xiaoyi walked over and squatted down to observe carefully. Snorting vigorously.

"These two words are written in blood, and they seem to be the victim's?" Luo Xiaoyi asked without raising his head.

"That's it, this lawyer was pierced into a blood gourd."

"Tell me how he was killed."

Li Quan handed over a photo.

I saw that the lawyer was naked, and his feet were tied. His head was leaning against a stack of books, his expression painful, dead and dead.

Luo Xiaoyi looked at the photo carefully, and there were two huge blood holes in the lawyer's stomach and thighs, and the two lumps of flesh were gone.

Luo Xiaoyi looked back at Li Quan.

"The two pieces of meat were fried by the murderer at the scene and placed next to the victim. It has been kept as evidence. With that, he handed over a note.

"Cut him a pound of flesh, no more, no less, no cartilage, no hard bones." So it was written on the note.

"Does this look like a poem?" Li Quan asked.

"It should be." Luo Xiaoyi did not make it clear.

Luo Xiaoyi got up and walked around the scene, and on the lawyer's desk, he saw a photo of his wife, like a Chinese and Iranian person, but someone painted an eye with blood between his eyes.

"Where's the lawyer's wife?" Luo Xiaoyi asked.

"Mentally unstable, I'll have to wait before I can ask questions."

Luo Xiaoyi wandered around for a while, and asked, "Plus the fat man at noon, what have you found now?" ”

"There are no fingerprints of the killer now, and there is no intersection between the two victims. Of course, there were no eyewitnesses. Li Quan's expression was solemn.

"Is the fat man's autopsy ready?" Luo Xiaoyi broke the silence.

"Let's take a look?" Li Quan asked.

Luo Xiaoyi looked at the note in his hand and nodded.

Dissection room.

"The stomach is extremely unusually dilated, and the anal opening is so large that there is still undigested food left on it. At the same time the duodenum is distended. The inner wall is cracked. Forensic Doctor Zhang wore a white lab coat and pushed the gold-rimmed glasses on his nose.

"In other words, it's just that the stomach is swollen after eating." Li Quan asked.

"It's not a burst, it's not quite. There is also very severe internal bleeding, in the rectus abdominis and abdominals. ”

"All have hematomas?" Li Quan asked.

"Yes."

"What about the bruises on the head?" Li Quan pointed with his finger and asked if the fat man was so big that he was swollen.

"It's not clear yet."

"Did someone put a gun to his head?" Li Quan had an answer.

"Extremely hard." Forensic doctor Zhang confirmed orally.

"It's fucking, it's red and swollen by the snatch." Li Quan smacked his teeth.

"Basically, it can be concluded that the murderer was unusually patient, grabbed the fat man's head, fed him half-baked grass, snakes, rats and toads, and prepared a bucket to let the fat man vomit until he ......" Forensic Doctor Zhang pushed down his gold-rimmed glasses again.

"Until the fat man is eaten alive." Li Quan's thoughts echoed distantly.

"No, now it is concluded that the murderer let the fat man eat for twelve hours without stopping, and the fat man devoured vigorously, his throat swelled, and he fainted, and then the murderer kicked the fat man in the stomach, causing the pile of organs in the stomach to rupture and die." Forensic Zhang gave a definition.

"Who hates fat people so much?" Luo Xiaoyi asked.

The three of them were silent for a moment.

"By the way, plastic fragments were also found in the stomach." After Dr. Zhang finished speaking, he took out a glass bottle from his pocket.

"What is plastic scrap?" Li Quan took the bottle and asked.

"It's plastic scraps."

Li Quan and Luo Xiaoyi looked carefully at the long, black plastic fragments in the bottle, glanced at each other, and nodded their heads.

Li Quan's police car stopped at the door of the fat man's unit, and the two came to the scene of the murder.

The stench persisted, and the faltering sixty-watt light bulb swayed the gloomy and oppressive room into a desolate and gloomy place.

The two searched separately in the room. Eventually, several gaps were found in the plastic floor under the refrigerator, and after careful comparison, they were the same size as the plastic fragments in their hands, which seemed to have been picked off.

After some activity, the two pulled out the refrigerator, only to see the word "gluttony" written in red chalk on the wall behind the refrigerator.

There is a note nailed to the wall underneath.

The two of them took a closer look, only to see that it was written, "The road is long and arduous, and when you get out of hell, there will be light!" ”

"I think it's almost a one-man job." Li Quan lit a cigarette and hid his face in the smoke.

"One person ......" Luo Xiaoyi smiled meaningfully and did not speak again.

After school at noon the next day, Luo Xiaoyi walked into the police car parked at the school gate.

"The lawyer's wife has calmed down a lot, it's time to go and see her." Li Quan held the steering wheel and opened his mouth.

In a high-end community, the two met the lawyer's wife.

It can be seen that the mood has not fully recovered, chattering, tears and snot without saying one, two, three. I don't understand even more what greed means when written in blood.

"Don't you think about it anymore, what case has your husband offended recently?" Li Quan interrupted her chatter.

"Gongjia, you also know what my husband does, I want to say less about the industry, and more about exposing the shady, but there are really no homicides recently, even if there is, everyone understands the rules of the game, why take a knife and stab someone......"

"You'd better take a look at the photos from the scene." Luo Xiaoyi put the photo in front of the lawyer's wife.

The lawyer's wife looked at her crying, suddenly stopped sobbing, and exclaimed "Huh".

told the two that behind her husband's desk, a modern painting of colorful squares was reversed.

"These people with two dollars are really, they hang these modernist art paintings in the house when they have nothing to do, aren't these paintings the same as they are, who can still see that it's anyway!" In the car, Li Quan was complaining.

Luo Xiaoyi was silent all the way, and his shining eyes continued to converge in the carriage.

The office building was crowded during the day, and the two came to the lawyer's office, which smelled of blood.

Looking closely behind the desk, a modern impressionist painting of checkered and blue and red colors is displayed.

After looking at it for a long time, they couldn't understand the essentials, so the two of them moved the painting off the wall, looked at it for a while, and found nothing.

Looking up at the empty wall behind the painting, Li Quan scratched his head and took out a vial from his arms. Dip it in it with a small brush and start drawing on the wall.

"Do you think you will find fingerprints by using the powder brush method?" Luo Xiaoyi asked.

Li Quan grinned, his hand movements did not stop, the small brush rustled on the wall, and after some smearing, several clear and abnormal fingerprints jumped on the paper.

Li Quan was overjoyed, and hurriedly notified the police force to come to take samples, and went back to do fingerprint comparison, so he was busy.

Luo Xiaoyi didn't participate in the rest of the matter, returned to school, and just had two classes in the afternoon, Li Quan's pager came.

After taking a leave of absence, as soon as he left the school gate, Li Quan's Santana police car was already waiting at the school gate, and as soon as Luo Xiaoyi got in the car, Li Quan started the car and arrived at a dilapidated community in a hurry. Before getting out of the car, Li Quan threw a police uniform to Luo Xiaoyi and motioned for him to put it on.

As soon as I got out of the car, I saw that outside a unit of the decayed and outdated community, the outer police guards pulled the cordon, and the police officers climbed up and down on several commanding heights, and all kinds of red and blue police cars were scattered and paved with asphalt roads in the community, and the silent police lights continued to rotate and sway, and people neighed. Noisy.

Several armed police vehicles came at a gallop, and a group of armed police officers with loaded guns and ammunition gathered in a row, and began to rush into the corridor of a unit in a longitudinal column.

"What's the situation?" Luo Xiaoyi asked.

"Through fingerprint comparison, it was determined that the fingerprints of the lawyer's office came from an otaku uncle who lived here." Li Quan replied.

"Even so, it's not certain that he's the murderer." Luo Xiaoyi watched the armed police burst into the corridor.

"In any case, we must arrest him first, and given that he may have killed someone, the necessary precautions are still needed." Li Quan motioned for Luo Xiaoyi to follow.

When the two entered the corridor, they saw the armed police team throw off their arms and hit the door hammer to say hello, and the mottled and old wooden door fell to the ground in a cloud of smoke and dust.

The armed police team entered the room in a tactical move, and there was no movement in the middle of the sound.

While the policemen were hesitating, an armed police chief came out of the room, with an angular face under a low steel helmet. "It's different, come in and see."

The policemen looked at each other and hurried into the room.

As soon as I entered the room, a familiar fishy smell came to my face, and the small room was dim and deep, and it was strange.

When everyone came to the bedroom, they saw an adult man lying on a thin and old bed in the dim room, and his shape was erect and not human. Like a dried corpse.

On closer inspection, the hands and feet of the dried corpse were bound by belt buckles fixed to the four corners of the bed, deep blood marks were carved on the wrists and ankles, and the urine and urine were spread on the blackened and rotten bed, and maggots were buzzing, densely packed.

On closer inspection, the dried corpse was covered with the remains of dozens of snakes of various colors that had not completely decomposed.

"Grass, what the hell!" The policemen buried their mouths and noses, their brows furrowed.

Li Quan approached the corpse, looked at the photo in his hand for a few seconds, turned around and shouted, "Confirm that this person is an otaku uncle, and notify the identification team to come in and clean up the scene." ”

Suddenly, the dry corpse sat up on dry land, and the maggots that swept the sky frightened everyone.

"Hurry, the ghost thing is still alive!"

The crowd shouted.

After a half-ring, he calmed down and informed the medical team to transport the living dried corpse away.

Li Quan also left in a hurry.

Luo Xiaoyi was left alone in the empty room, and he was silent in place, looking at the wall behind the bed of the dried corpse, with the word "lazy" written on the wall with a brush.

Suddenly, Luo Xiaoyi was excited, put his right hand on the electronic strap, and went out with a solemn expression.

A young man with a goatee stood at the door, looking at Luo Xiaoyi from afar.

"It's you, isn't it?" Luo Xiaoyi asked.

"You are Luo Xiao......" The young man with the goatee had not finished speaking.

Luo Xiaoyi's Zhuxian slashing knife had already fallen.

The young man suddenly transformed and mutated, and flew up like a bird flying into the sky and stuck to the top of the corridor.

Luo Xiaoyi raised his eyes and saw that the young man had turned into an entity intertwined with countless tiny locusts, buzzing towards Luo Xiaoyi.

The two of them made a few moves in the corridor with their eyes closed, and Luo Xiaoyi regretted that he shouldn't have used the Zhuxian Horse Sword, and he couldn't use it at all. was pounced on the ground by this locust entity, thanks to the protection of the façade with the Zhuxian sagare, and was not slapped with a big mouth on the face, through the cold blade, I saw the purest darkness in the deepest part of the eye socket that was disturbed by the locusts and turned like a star cluster.

Luo Xiaoyi shouted, Wujin Sword made a horizontal split, hundreds of small locusts were split from the locust entity, and the juice splashed Luo Xiaoyi's body, as if a few more fell into his mouth, and he couldn't care about it at this time. The hand qi sword fell and slashed at the locust entity, but the locust entity no longer loved to fight, and escaped along the corridor with a hula.

The small locust residues scattered on the ground disappeared as if they had never appeared, leaving only Luo Xiaoyi with stinky juice and rotten liquid.

Luo Xiaoyi snorted a few times, didn't spit out anything, and walked out of the corridor, and the outside world was full of spring and snow.

As soon as I got home, I changed my clothes and took a shower, and Li Quan's pager chased after me.

hurriedly went out and came to the city bureau, Li Quan was already waiting at the gate, and took Luo Xiaoyi into a conference room, which was full of smoke and friends.

The two came to the rostrum and sat down, and Li Quan opened his mouth: "Comrades, this is Luo Xiaoyi, a senior scientific researcher at the Youth Christian Institute, in view of the particularity of our case, I ask him to make a relevant report to you. ”

The crowd was disturbed and disagreed.

"All three victims were prompted by the killer's annotation." Luo Xiaoyi's voice opened calmly.

The crowd was quiet.

"The fat victim is: gluttony.

Lawyer victim is: greed.

Otaku uncle is: lazy.

What does this mean? ”

No one answered.

"There is a word of punishment for the seven deadly sins in Catholic doctrine."

Everyone was silent, waiting for the following.

"Gluttony: Compulsive feeding of rats, toads and snakes

Greed: Torment in oil

Sloth: Thrown into the Snake Pit

The crowd was connected to each other.

"Also, there are two notes with words, what do you mean?" Someone in the audience asked a question.

"Nothing special, you can read the classics of Europe in your spare time."

"There are a total of seven deadly sins you said, if someone really kills people according to religious rituals, then this is a serial murder case, and there will be victims?"

Everyone asked.

Luo Xiaoyi was about to reply.

"Jingle Bell"

The phone rang on and off the stage.

Li Quan listened to the phone, and in the midst of the uproar, he said to Luo Xiaoyi, "Something happened again, in the same jurisdiction, the third fat man was killed." ”

Luo Xiaoyi was silent for a while, and then spoke, "Captain Li, please give me a map of that jurisdiction." ”

Li Quan took Luo Xiaoyi to the office and transferred a map of the jurisdiction from the archives to Luo Xiaoyi.

Luo Xiaoyi spread the picture on the table and observed it condescendingly.

The conference room was full of people and no one cared.

Luo Xiaoyi took out a pen from his schoolbag and drew on the map, half loudly, the corners of his mouth rose, and he smiled lightly.

"What's the new idea?" Li Quan's face was full of anticipation.

"Nope!" Luo Xiaoyi spread his hands.

"Heckling ghosts." Li Quan lit a cigarette and hid himself in the smoke.

Luo Xiaoyi didn't speak, and looked at Li Quan silently.

A cigarette time, the two were silent.

"You look down on us old policemen?" Li Quan snuffed out his cigarette.

"Nope!"

"The state apparatus has a special agency that will deal with this kind of thing, sooner or later!" Li Quan lit another cigarette.

"As soon as you get out of hell, there is light!" Luo Xiaoyi packed his schoolbag, nodded to Li Quan, and said goodbye first.

Snowflakes are all over the sky, and the wind is howling.

Luo Xiaoyi let the snowflakes fall all over his body, and walked silently on the snow-covered road.

Triangulation, which is a very old technique, is required to have a knowledge of geometry in junior high school.

A triangle has stability, any three sides can only form a triangle, the distance of A, B, and C is known, and the distance of the other point P from A, B, and C is determined in some way.

By making three-dimensional figures, the figure model is generally built in a spherical shape. The position of P in space can be determined.

In ancient times, geographical distances were calculated using hilltops or striking landmarks such as castles, towers, and beacons.

The 24 satellites of GPS are evenly distributed in 6 orbital planes, and 4 satellites orbit the earth in each orbital plane, so that at least 4 or more satellites appear in the sky for users to use at any place and at any time.

Each satellite transmits a radio signal to the surface covering the coordinates of its own orbital plane and the operating time, and the GPS receiver measures the distance by measuring the transmission time of the radio signal.

Of course, whoever killed the three fat men or the hell wouldn't have cooperated to send out radio signals to remind them of their whereabouts.

From the position of each satellite, measure the distance between each satellite and the receiver, and calculate the three-dimensional spatial coordinate value of the receiver's position. The user only needs to receive 3 satellite signals using the receiving device to determine the user's location. Generally, GPS uses the receiver to receive more than 4 satellite signals to determine the location and altitude of the user.

Therefore, without such a complex device as GPS to calculate the location, through the floor plan of the jurisdiction, you can clearly see the coordinates of the three fat men who were killed, and the triangular coordinate value can be found in the three-dimensional spherical space.

The man who killed the three fat men is in the P-spot of this range.

Of course, there may be two, and it is enough to determine which one is impossible, for example: there are two possible positions of the aircraft: one is 10KM in the sky and the other is 10KM underground, and the plane must be 10KM in the sky.

So I found the fat man's killer through triangulation.

Luo Xiaoyi's thoughts flew all the way, and he retold the above words in his mind and arrived at his destination.

A small building with a single courtyard in an urban village.

Take a deep breath, in this small space, the Ugin Sword is more suitable for close combat.

Luo Xiaoyi pushed the door with his sword and entered in a flash.

The courtyard was in the heavy snow, paradoxical, silent, rancid.

Luo Xiaoyi held his breath and carefully searched each room one by one.

I searched for it, but there was no one.

Out of the gate, meditating in front of the door.

A figure appeared behind him.

Luo Xiaoyi turned around.

A tall, murderous young man with a goatee in dark green toad glasses stood still in the bleak winter day.

It was the locust people who had fought in the corridor before.

Luo Xiaoyi was just about to charge.

The young man stretched out his palm and made a gesture to stop the battle.

"It's very level, human, so quickly found a place for the lonely drop-off, but if you are one step late, he will have slipped away a long time ago." The young man with the goatee spoke first.

"Tell me about you." Luo Xiaoyi's hand did not leave the hilt of the sword.

"The Messenger of the Bottomless Pit", "The King of the Blight", "The Dark Angel of Death". Abaddon is me! ”

"What a big deal! We've seen it before, right? ”

"Yes, in the last episode I arranged for my men, those locusts, to try your skills"

"Are you happy with the results?"

Abaddon pushed the toad mirror in dismay.

"We've fought each other in this episode, and you're the locust man." Luo Xiaoyi asked.

"Not bad, human."

"What is your purpose?"

"Compared to this, you should find the lonely man as soon as possible, do you know what he has in his hands?"

"It can't be a roasted sweet potato anyway."

"Your classmate, Zheng Jiannan is in his hands."

Luo Xiaoyi was silent for a while. "Say what you want."

"I'm waiting for a bigger fish to take the bait, and you find the Lonely Dropper again, notify me. Let's kill them all together, how about you take Zheng Jiannan away? ”

Luo Xiaoyi nodded and wrote down Abaddon's mobile phone number. (To be continued.) )