"If it's the first possibility, this best friend will be the breakthrough point for the police to uncover the loan shark gang behind it. If it's the second possibility, we have to consider whether this woman is directly related to the murderer we are looking for." Tao Lin concluded.

He glanced at Yu Zijiang and said.

"According to the mark inspection report, the owner of the size 39 men's shoe print on the snow on the top floor weighs between 40kg and 45kg." Tao Lin finally nodded meaningfully.

"Based on this result, I tend to believe that a woman committed the crime." Tao Lin emphasized his thoughts again.

"I agree with you, so I have already told you that we need to find the suspicious woman who is closely related to Zheng Xuan as soon as possible." Yu Zijiang took over.

"But Zheng Xuan's only family member in R city is Kong Weihao, but they are just a couple in name only. They don't interfere with each other in anything they do. Her relatives back home usually don't care about her much and don't know anything about Zheng Xuan's current situation. I want to find and

It’s really difficult for her to interact with women.” Then he spread his hands helplessly.

"Since we can't get through the victim's relationship network, we will adopt the [Skynet] tactic and let the detective start from the day of the crime to search for surveillance videos of the streets near the crime location, and collect Zheng Xuan's entire whereabouts over the past few days.

Piece it together bit by bit." Tao Lin said to Yu Zijiang.

"Anyway, surveillance cameras are everywhere now. Unless you deliberately plan to avoid the cameras, Zheng Xuan will definitely be clearly photographed in the streets and alleys."

Yu Zijiang couldn't help but straighten up as he listened to Tao Lin's words.

"Although your idea is a bit laborious, at least it has a breakthrough. Maybe... we can catch a big fish." Yu Zijiang raised his eyebrows meaningfully.

"Well, this is my purpose." Tao Lin understood Yu Zijiang's intention immediately.

"Although we can't figure out Zheng Xuan's interpersonal network yet, a very important keyword appears on her - illegal loan. And this [illegal loan] should be the initiator of the entire case. The person who found Zheng Xuan for illegal loan

The gang, her illicit interpersonal network will definitely surface, and in this way we will have won half the battle." Tao Lin continued.

"Based on my experience, a person who carries so many usurious debts will definitely meet gang members very frequently, whether she likes it or not, and is very likely to be taken to the gang's lair." Yu Zi

Jiang said.

"So the top priority is to target places where Zheng Xuan frequently visits," Tao Lin added.

Yu Zijiang took action as soon as he slapped the table. He hurried out and headed towards the Picture Investigation Section.

Tao Lin had classes in the afternoon, so he didn't stay at the police station for long. He just said goodbye to the police officers in the office in a hurry and drove to R City Criminal Police Academy.

Yu Zijiang walked quickly along the corridor, turned around near the end of the corridor, and quickly opened the ajar door of the Picture Investigation Department.

It was noon, and almost all the police officers in the office were sitting at their desks eating. Seeing Yu Zijiang coming, they quickly wiped their mouths clean and finally raised their heads.

"Team Remaining!" Several police officers greeted in unison.

"Hurry up and finish your meal. After you finish your meal, hurry up and get moving. Find the scene where Zheng Xuan last appeared in the surveillance video. Then follow the surveillance back and pick out all the places she has been."

Yu Zijiang said hurriedly while walking towards the big surveillance screen.

"Isn't this workload too much?" an outspoken police officer blurted out.

"The workload is really heavy, so I have to work overtime! Everyone has worked harder these two days. After the case is closed, I will treat you to a drink." Yu Zijiang said the next sentence, and then waved to the police officers to come over and work.

"It's coming, it's coming!" The police officers did not dare to neglect, stuffed a few mouthfuls of rice into their mouths, and quickly got into work.

Yu Zijiang spent the whole afternoon bored in this office of dozens of square meters, dealing with the dazzling surveillance videos.

R City Criminal Police Academy——

Tao Lin had a full class in the afternoon and stood on the podium for several hours. At 5:40, the bell finally rang for the last class.

He put the whiteboard pen back into the pen holder on the podium and neatly announced the end of get out of class.

The students in the classroom stood up one after another. As usual, Tao Lin kept nodding and said goodbye to every student who greeted him. It was not until the classroom finally became empty again that he organized the lesson plan and picked up the computer.

Bao walked out of the classroom.

Not long after class ended, there were many students standing in the corridor.

Suddenly, he heard the sound of a couple arguing not far away. The argument between the boy and the girl was not intense. The girl kept complaining about something, but the boy apologized nicely and kept comforting the girl's emotions.

In an instant, Tao Lin's body seemed to be pulled by some force. He stopped and his attention was completely attracted by the arguing students.

"Why do you always get angry..." The boy complained helplessly, while circling the girl, insisting on standing directly opposite the girl.

The angry girl kept turning her body to avoid the boy. She folded her arms and looked angry.

"Then why do you always make me angry?" the girl said angrily.

Tao Lin suddenly stood motionless as if petrified, looking at the two students not far away, an idea flashed in his mind.

[Yes... quarrels all happen randomly. If the murderer wants to catch Zheng Xuan when she loses control of her emotions, it means that he has to monitor Zheng Xuan at all times and understand her real-time emotional changes. ]

"I won't talk to you anymore, just go and stand wherever you want!" The girl said the next sentence, turned around and wanted to leave quickly.

"Hey, don't go - I was wrong, I was wrong..." The boy grabbed her hand and hurriedly followed.

The two of them didn't take more than two steps before they bumped into Tao Lin, who was staring at them in a daze.

"Hello, Teacher Tao..." The two students were obviously startled and quickly greeted Tao Lin respectfully.

"What...what's wrong with you?" The girl looked into Tao Lin's eyes and realized that the teacher seemed to be looking at her just now.

"Oh." Tao Lin was startled and came back to his senses.

"Couples shouldn't fight all night long. There's nothing that a hot pot meal can't solve." He smiled and randomly picked up some topics, hoping to ease the awkwardness of the atmosphere.

It's a pity that Tao Lin is not a person who likes to laugh, and the stiff raised corners of his mouth seem to make the atmosphere even more awkward. He is not good at talking, so he was broken by embarrassment, and the three of them just looked at each other.

"Thank you, teacher, for your concern. We are going to have hot pot right now!" The boy smiled and spoke again, holding the girl's hand and hurriedly fled the scene.

Tao Lin also breathed a sigh of relief as he watched the two students stumble away and finally disappear into the crowd of people coming and going in the corridor.
Chapter completed!