"Teacher, I'll go to the scene first, and then I'll invite you to tea next time." After speaking, Xiao Yi drank the brown tea in the teacup in one gulp, got up and walked out of the private room.

Liu Shifei looked at the back of Xiao Yi leaving and said: "It's like this every time, if you have the chance, I have to kill you."

Xiao Yi paused and said, "Teacher, you don't know my situation yet. I'll cook for myself when I have the chance. ”

"You're a good kid at saving costs......" Liu Shifei shook his head and smiled. After more than 10 minutes, there was no movement outside the door, and after confirming that Xiao Yi had left, he dialed a number.

"The little madman probably knows a lot more than we do...... Can you give a hint of the opponent's situation? ”

"Are you sure you want to know?" The other side hesitated for a long time and responded.

"Lao Liu, I've been at the border for a long time, have you forgotten my profession?" Willow is right and wrong.

"Do you believe in mythology?" The other party asked.

"Believe, because according to the results of my recent investigation, it has been found that there are species that are not human and inferior to human intelligence, and mythical creatures are estimated to be the same type." Liu Shifei threw out his own opinions.

"Our opponent may not be human, and we have been laying out decades or even more ago...... Maybe the world will be turned upside down. The other party hung up the phone.

“…… I don't know if it's right to put all the bets on the little madman...... There's no other way now......" Liu Shifei thought.

On the other side, when Xiao Yi arrived at the police station, it was already noon, and the entire serious crime team was filled with a heavy atmosphere, and a few jokes from the past when they were idle disappeared, and everyone worked hard to analyze the complicated information in their hands.

Xiao Yi walked behind Jiang Lin lightly, patted him on the shoulder, and whispered, "Go to the scene with me again in the afternoon, maybe we have overlooked something important."

Jiang Lin put down the information in his hand, took out a comparative report sheet from it and handed it to Xiao Yidao: "Team Xiao, in this week, I have compared almost all the materials similar to the crime scene in this city, which is a small piece of fiber that I found on the ground that day. Here's a comparison list, as well as a specific store that sells this fiber. ”

Xiao Yi smiled and said, "It's hard work, I'll treat you to dinner."

As soon as Wang Jun heard this, he instantly came to his senses and said: "Team Xiao, not only Xiao Jiang is busy, but all of us are working hard, if you have a treat, shouldn't we all be invited?"

The others turned their heads and looked at Xiao Yi with a smile, the meaning was self-evident, and the heavy atmosphere instantly diluted a lot.

"Okay, I'll please, I'll please. Zhao Wen remembered to inform Forensic Doctor Zhang when he came out. Xiao Yi said and returned to his office.

Looking at the report sheet in my hand, I found that that kind of fiber is very normal, and there are many places where it is sold in this city.

It suddenly occurred to me that Wang Jian seemed to have said that he also had a son, as if he was in school. Clicking on the relevant information, I found that the kid was in the third year of junior high school, and coincidentally there was a store near the school that sold that kind of fiber.

"Wang Jian, Wang Jian, let you calculate in every way, but I didn't expect your son to show flaws."

After lunch, Jiang Lin was going to drive to the scene of the crime, but Xiao Yi suddenly said, "First go to the vicinity of Wang Jian's son's school." By the way, what is his son's name? ”

Jiang Lin wondered, "Why did Team Xiao go?" His son's name is Wang Hong. ”

"I want to be sure of one thing, didn't Wang Jian say that his son rarely goes to the construction site? Hate the worker...... Then he has a motive to commit the crime. Xiao Yi said.

"No, a junior high school student kills ......" Jiang Lin reacted a little big.

Two hours later, the two came to school, and Xiao Yi first went to the shop that sold fiber.

"Boss, we're police officers and want to ask you something." Jiang Lin took out the police officer's testimony and said.

A somewhat bald head protruded from under the counter, looked carefully at the police officer's card, and then slowly stood up with his whole body.

Xiao Yicai began to look at the shopkeeper in front of him, wearing a red vest on his upper body, balding, and about 45 years old, looking at the two with a smile on his face.

"Officer, I'm a small business with a business license, what do you want to ask?" The middle-aged man said with a smile.

Jiang Lin took out the checklist and handed it to the middle-aged man: "Let's see, in the past month, no one has come to buy ropes made of this material, or other items, as far as I know, there are not many people who buy products made of this material."

"It turned out to be a nylon rope, the material is nylon 66, there are indeed not many people who buy this, I think about it, I'll go inside to check the record in a while, two wait" The middle-aged man said and went directly into the inner room.

I took out a notebook that looked like a bill and began to look it up. After a while, he returned to the counter and said, "A month ago, someone bought a rope made of nylon 66 material, and someone bought it a week ago, but the quantity is not much."

"Tell me who bought it? You should have a record of this. Xiao Yi said.

"A month ago, a student bought it, and I asked him what he was doing with such an expensive rope, and I vaguely remember what he seemed to say about what the school was for?

A week ago, a waste picker came to buy it, and he said he was going to buy this fixed bed. "Middle-aged humane.

Jiang Lin took out his mobile phone, flipped out the photo of the scavenger and said, "Is this it?"

The middle-aged man recognized it himself and said, "This is it, I'm sure."

Then Jiang Lin swiped his phone, and another student photo appeared: "What about this?"

The middle-aged man only glanced at him and said, "It's not him, I remember that he seems to be the son of Qingtian Group, Wang Hong."

"How much do you know about him?" Xiao Yidao.

"Usually he is very low-key, rarely telling others about his life experience, I also happened to see Wang Jian send him to school at a time of purchase." Middle-aged humane.

Xiao Yi was just about to go out, and the middle-aged man suddenly said: "Although Wang Hong didn't buy a rope, but the people around him did, I remember that the student seems to be Wang Hong's younger brother."

"What?" Xiao Yi suddenly turned his head and stared at him.

The middle-aged man was frightened by Xiao Yi's gaze, shivered all over, and stammered a little: "You...... You didn't ask me, but looking at me like this, I was a little panicked. ”

"What's that classmate's name? Don't say you forgot, or you'll be invited to the police station for tea. Jiang Lin Zhengse said.

The bald middle-aged man instantly broke out in a cold sweat, thought about it for about 5 minutes, and instantly seemed to think of something, and said: "Shang Ren, yes is Shang Ren, I have heard it many times, and other classmates call him a businessman." In the end, I couldn't help but ask him what his name was, and he said his name was Sang-in. ”

Xiao Yi instantly felt that something was wrong, and walked out of the store and said, "Is the dead scavenger also surnamed Shang?"

Jiang Lin said: "Yes, it's the surname Shang, it's called Shang Wu, and I still felt that this surname was very rare at that time."

Xiao Yi had a flash of inspiration, and he knew how the workers on the construction site had died.

First of all, Shang Ren must have an unusual relationship with that scavenger, the surname Shang is the same as Jiang Lin said, it is not so common, on the contrary, it is very rare.

If the relationship between the two is that of relatives, then everything can be explained, Shang Ren bought a nylon rope and went back to the scavengers, and learned the specific situation of the construction site through Wang Hong.

Shang Wu secretly entered the construction site to transport the materials of the construction site with a nylon rope, but was unfortunately discovered by a passing worker, so he killed him. But there is a doubt, why did the model house appear where? If Shangren kills someone, then he will definitely not call the police, and scavengers are generally afraid of the police, after all, some of the things they pick up are not honorable, and even constitute a crime.

Therefore, Shang Wu is not necessarily the real murderer, at most he only sees the murderer killing, and for some reason, he can't tell the murderer's situation. The repeated frustration of the investigation suggests that someone is covering up the truth.

Shang Wu's death has become inevitable, because he bought a nylon rope a week ago, but unfortunately it was discovered by the murderer, and in order to prevent the news from being revealed, Shang Wu must die.

But why did they kill him a week later, why didn't they kill him on the same day? There is only one reason for thinking about it: that is, the murderer only learned yesterday that Shang Wu had bought a nylon rope.

The nylon rope left at the scene was the one that Shang Wu stole to tie up the leftover, and it happened to be discovered by the murderer, perhaps, there is another possibility, the murderer had already discovered Shang Wu when he committed the crime, but he didn't kill Shang Wu for some reason.

This is a trap, a trap against the police, a trap against Shang Wu.