All-round mathematician

Chapter 199 Narrowing down the target
The white paper folded in half is illuminated against the light, with four dots in the southeast, three dots in the northwest and the last two dots added, the nine black dots look more vivid and the distribution is regular.

"This is...the Big Dipper Nine Stars." Tian Jian couldn't help exclaiming.

"Huh." Yang Xi, who was beside her boyfriend, felt miraculous, hurriedly took a small piece of paper from his hand, compared it over and over again, and muttered to herself: "It's really true."

The Big Dipper, everyone knows that the term nine stars has long existed, Zuo Fu and You Bi are hidden stars, so it is said that seven appear and two are hidden.

"Is this suspect an astronomy enthusiast?"

The evidence is conclusive, and the development of thinking has opened Tian Jian's horizons. Compared with several crimes, there is no problem. The suspect definitely did it on purpose.

coincide?Where are there so many coincidences?The scale of the map is accurate and the location is correct. If it wasn't for Beidou, it would be hell.

"Yang Fan, how did you find out?" Tian Jian tightly grasped his brother's arm, his eyes were eager, now he only had one thought, he couldn't let this kid go.

The note was passed around in the hands of family members, and the more people read it, the more magical it became.How to commit crimes and engage in astronomy, do you want to be so elegant?

Yang Fan laughed and said, "Brother, you guys have been misled. I heard the seven crimes, and the number related to seven popped up in my head. No matter what, I always think about numbers."

"Seven days a week, seven continents in the world, seven-star ladybug. Since the first case, you didn't think about it. You must be thinking wrong, right? I just had a flash of inspiration."

Would a normal person think of this?Absolutely not, Yang Fan's mind is so clear, the great educator Song Xiaoli laughed proudly: "Yes, follow me. I am also very smart as a mother."

The corners of everyone's eyes were upturned, and they exchanged glances, Song Xiaoli is still smart?

"Yang Fan, go to the police station with brother, this case needs your help." Tian Jian sincerely invited.

"Brother Tian, ​​I feel weak when I hear the police station." Yang Fan subconsciously shied away, there were still people staring at him at the gate of the house, what to do if he couldn't go back.

"The next crime must be in those two places. This suspect is very difficult to deal with. You said that the financial benefits of committing the crime are very small. I thought it was strange at the time. I reckon he is provocative, looking at you while pursuing excitement. joke."

Tian Jian's complexion changed drastically. After all the team members went out again and again, they failed. The suspect was in the corner, secretly monitoring their every move, mocking and contemptuously.

The suspect must be thinking, given the hint but still can't find any clues, the police force is full of pigs.

"Little brother, help me." Tian Jian almost begged.

Yang Xi saw that her boyfriend was helpless, and glared at her younger brother: "En?"

Yang Fan was worried about his hair. The eldest sister got angry when he was a child and shaved off his hair. Yang Fan was hurt by this for more than three months.

"The police station will definitely not go, Brother Tian, ​​why don't I talk to you about this again."

"Okay, time...it's still early, sit down for a while."

Tian Jian pulled him back to the living room, helped to store water in the teacup, and deliberately sent it over with both hands respectfully.

The family that was about to disband was pulled back again.There was a turning point in the case, and everyone sat down again in the living room.

The three gamers moved the battlefield, the restaurant was empty, and they continued to fight.Chen Xiaoying glanced at Yang Fan, who was surrounded by the crowd, and gave a secret pooh, knowing that she was being flattering, depressed, and not like a young man.

"Whatever he does." Yang Hang felt a little uncomfortable, the center of gravity of the family status became more and more biased, "Quick start."

"Keep your voice down, it's better for him to hang on to the sky. We can kneel and lick in the future, and we can save a few years of struggle. If he wants to save face, he will always give us food." Yao Zhewei whispered.

Compared to the other two, he is the smartest person, he doesn't talk much, but sees everything in his eyes.

The two were stunned at the same time, gave thumbs up, and continued the game, so that those who can fight will fight harder. As the old saying goes, with great ability comes great responsibility.

If Yang Fan heard the voices of his younger siblings, he would vomit blood angrily and yell again, there are many things about problem children.

The note was passed back to Tian Jian, and he pointed to the new discovery: "The location is determined, but there is no clue about the time. The team members guard these two places day and night, and they can't afford it."

Eight months before and after the case, the suspect was very patient and waited until he was sure before going out.If he gets some wind, if he doesn't do anything in March and May, the police force will stop doing anything.

"If I were a suspect, the time of the eighth attack is uncertain, but the ninth time, there are only two possibilities. One, the ninth day of the ninth month in the lunar calendar, corresponding to the nine stars of the Big Dipper, elegant and cultured. Two, and a year ago At the same time as the day before, a closed loop of beginning and end came, and from then on, he escaped from Wuzhou, lurked in other places, and studied the next modus operandi."

Yang Fan has long discovered that the suspect likes to play with IQ and show culture, and this time, he will take the risk and try it.

This is the consummation of xinxing, otherwise they wouldn't be doing these tricks.

"It's hard to say that this person has a high education, top IQ, withdrawn, quiet, few friends, lack of warmth, so perverted that he wants to challenge the police system."

Yang Fan scoffed at this kind of insanity, he had to draw attention and cover up, if he played by himself, he was even smarter than him.

Walking a tightrope, giving clues to the police at the scene of the crime every time, and then misleading them, completely in the palm of the hand, this kind of gameplay is interesting.

"Boy, what are you thinking?" Yang Tian's hair stood on end, he slapped his son's forehead again, father and son connected, he saw envy and contempt in his son's eyes, the idea was too dangerous.

"No, I'm analyzing." Yang Fan tidied his hair and replied quickly.

Tian Jian frowned, the time span was too long, the nearest Chongyang Ninth Festival would be in October, so wouldn't it be March.

The pressure on him from above might not last that long.I came out today because of my girlfriend, who is on duty on the streets of Beiqiao during normal hours.

"Is there a way to find someone in advance?"

"Yes." Yang Fan said.

"Really?" Tian Jian's eyes brightened.

"Hmph." Yang Xi sneered, and slashed two fingers like scissors, "Hurry up and say it, look at your coquettish appearance."

The map returned to Yang Fan's hand, and he pointed to the two staff dormitories with the largest range at the intersection of the circles: "He deliberately sold a loophole to observe the police's actions, and he will definitely find a monitoring point."

He drew another area casually, and said: "The front, rear, left, and right sides of the dormitory building are all factories. It can be said with certainty that he is an employee of these factories. I don't know the height of the factory floors. I have to go to the site to check. There should not be many staff dormitory gates."

Tian Jian recalled the terrain of the area. The dormitory has four floors, the main entrance faces east, and the road at the entrance is 400 meters long, with two-way single lanes, quiet and remote.

There are a lot of small processing factories, and it is estimated that there are only three or four medium-sized enterprises with high floors.

There is just another problem. These companies are near the intersection area and have also been searched two or three times.

"There are still many suspects, at least five thousand employees." Tian Jian said.

"Brother Tian, ​​you have been misled again. I counted up to 50 people."

"The suspect avoided multiple investigations and would not live in Beiqiao Town. This is a limitation of thinking. Why should he live near the crime scene?"

"Based on my speculation, in order to reduce traffic exposure and hidden dangers in the residence, the suspect took a factory car of a certain company to work from a distance."

"The suspect has been working night shifts for a long time for the convenience of his mobility, and he is still a relatively leisurely type of work, such as production line equipment maintenance, weak point repair, power duty, monitoring security, etc."

"The possibility that the suspect is an outsourced employee of the enterprise is 77%, and the company files cannot find this person."

"There is an 40% probability that the suspect is under the age of 83, energetic, living alone, and has no relatives or friends around him."

"The possibility of the suspect's file certificate being forged is 68%. As long as you check the account file and compare it with the photos, you can find his roots."

"suspects……"

Yang Fan himself brought in the modus operandi, analyzed his identity, and listed a total of 11 items.

Tian Jian gasped. For some reason, he felt that the cousin in front of him was the biggest suspect.

He didn't do it, how could it be so clear.

He slapped the table suddenly, pointed at Yang Fan's nose and shouted: "So it's..."

"how?"

"Oda, what do you mean?"

"Tian Jian." Yang Xi was the first to react, furious: "Give me a chance to think carefully before speaking."

Yang Fan stuck out his tongue, with such a low-end modus operandi, there are countless clues, brother will not be stupid.If you really do it yourself, you will never be able to solve the case after decades of investigation.

"Ah. Sorry, sorry, the excitement is broken."

Excited and happy, Tian Jian walked around the living room several times under the gaze of everyone, slapping the palm of his left hand with his right fist: "That's it."

Ignoring my superior, I ran to the door and said loudly: "Yang Fan, your sister knows your phone number, I'll call you another day."

Tian Jian left without even saying hello to his prospective father-in-law and mother-in-law.After a while, I heard the sound of the engine of the car downstairs.

Yang Xi watched him leave from the window, feeling uneasy.

The hostess Yang Yuan's face turned blue and white, glanced left and right, and said: "This Tian Jian, who still goes to work in the middle of the night, is really... hardworking. Everyone, let's go."

The hostess looked very bad, and glared at Yang Fan fiercely.

Yang Fan is innocent, workaholic has nothing to do with me.

(End of this chapter)