"What's the use of seeing it, I still can't change anything...... Even if I'm the first to see the scene, what can I do? Li Yifan shook his head helplessly and called Jiang Dong, at the moment he couldn't do anything but call Jiang Dong.

Although it was already twelve o'clock at night, Jiang Dong listened to Li Yifan's brief account of the incident on the phone, and decided to drive to Li Yifan's school first to pick him up and go to the middle school together, although both of them had been to school, but what they saw during the day was different from the perspective they saw on the roof at night, Li Yifan couldn't be sure where the girl fell, he was still somewhat lucky at the moment, hoping that the girl was not dead.

At night, Jiang Dong showed his documents all the way and drove directly to the downstairs of Li Yifan's dormitory, Li Yifan stood at the dormitory management office and took the notebook, quickly found the pen from the table and signed it to leave a phone number, just after he took this series of actions last night, but saw a small plastic sealed bag behind the pen holder, Li Yifan put the pen in his hand into the pen holder, and subconsciously raised his eyes to look over.

"Buttons!" Li Yifan exclaimed in his heart, "Yes! It's the button I saw in the MMS, the button that Wu Lianchi's cuffs were removed, how could it be here? Although Li Yifan's heart was full of questions, after thinking about it, he was more excited, he quickly put the buttons on the table into his clothes pocket, and unconsciously pressed his clothes pocket all the time, and sat in Jiang Dong's car.

"Since you have something at home, go back quickly." Li Yifan told the dormitory manager that something important suddenly happened at home, and he had to go back with his brother, and it was the dormitory manager who saw Jiang Dong's police ID card so he didn't ask much and let him go directly. The school's logistics and teachers have all seen Jiang Dong, and the dormitory manager on duty today naturally did not forget the big case of 'kobold hero' that Jiang Dong solved before.

"You're saying the girl was pushed down?" Jiang Dong drove the car, and this time he listened carefully to Li Yifan's account of every detail of the girl's fall from the building. He frowned, when Li Yifan called him, he had already rested, and he was in a daze when he heard Li Yifan say that he saw a girl falling from upstairs, Li Yifan spoke a little bearded, and said that it was a man named Wu Lianchi who forced a girl downstairs, and then said that it was a girl who stumbled, and Li Yifan, who was sitting in the car at the moment, told Jiang Dong with certainty that the girl was pushed downstairs by the person named Wu Lianchi.

"That's right! That girl was pushed down by Wu Lianchi himself! Li Yifan pinched the pocket with the buttons through the cotton coat, and from the moment he saw the buttons, he was thinking about how to make Wu Lianchi pay the due price for what he did.

Yes, Li Yifan saw clearly in his dream that Wu Lianchi didn't touch the girl, let alone push her down, but so what! It's him! It was Wu Lianchi who forced the girl to fall downstairs, if it wasn't for his unrelenting stubbornness, if it weren't for his lust and shamelessness, and he always wanted to take advantage of the girl, how could the girl fall from the roof of the building, their conversation Li Yifan heard it clearly, in his opinion, it was Wu Lianchi, it was Wu Lianchi! Nine years ago, he killed Su Ke'er, and now he is here to spoil other girls! also used the same disgusting language to persecute girls, it was Wu Lianchi, and he killed them!

Nine years ago, Wu Lianchi used the same language to persecute Su Keer in the office, when Su Keer was standing by the window, also begging bitterly, Li Yifan was downstairs, and he heard it clearly. But because of the cowardice in his heart, he didn't run up to stop all this at the first time, he hid downstairs and hesitated, and finally mustered up the courage to stand up, but heard a message in front of him. With a muffled bang, Su Ke'er was already lying on the ground, her eyes were still wide open looking at the open window above her head, the blood spread quickly along her dark hair, along the gap in the floor tiles, and slowly flowed to Li Yifan's feet, Li Yifan looked at Su Ke'er in front of her with tears, she seemed to be still breathing, but he didn't dare to run up.

He was stupid, he wanted to shout, he couldn't make a sound in his throat, he didn't dare to make a sound, he knew that Wu Lianchi was watching from above, he covered his mouth with his hand and couldn't close it at all, his throat kept twitching, and tears flowed down one by one. He wanted to turn around and run away from the scene, but his legs were like a jack, he couldn't take a step, he stood under the pine tree, he held his breath, in the air at that moment in addition to Li Yifan's heartbeat, he clearly heard Wu Lianchi upstairs looking out of the window and said disgustedly: "Tsk, this is jumping, Lao Tzu hasn't played much." The memory that was finally recovered was too cruel, as long as the brain was okay to think about, he would appear in his mind, and the self-blame and hatred made Li Yifan's body tremble, and tears would flow down unconsciously.

He remembered everything in the police station at that time, he had never known why he ran to the police station and yelled, but he couldn't remember the content of the shouting, and now that his memory was complete, he remembered everything. At this moment, looking at Jiang Dong who was driving next to him, he suddenly was not as close as before, as if he had returned to the image when they met for the first time, a little afraid and hated.

"Do you know that Wu Lianchi? How will you see your face clearly? Jiang Dong sighed, lit a cigarette, and refreshed himself. Regarding Li Yifan's delusions and dreams, he will choose to believe them without hesitation now, after all, there have been so many cases there before.

"Ah......" Li Yifan only realized this at this moment, this time he saw the face, he saw Wu Lianchi's face clearly when the girl fell at the end, could it be because of his deep hatred for Wu Lianchi in the depths of his memory that he could see the other party's face clearly? Maybe it's because I've seen the murderer before, he seems to be my elementary school physical education teacher. ”

"Oh." Jiang Dong continued to smoke his own cigarettes, this middle school is in the city, Li Yifan's university is in the suburbs, the distance should be far, but it was more than twelve o'clock this night, there were not a few cars on the road, Jiang Dong and Li Yifan discussed the case and soon arrived at the school gate.

"Hello, I am a police officer who has been to your school during the day, and we received a report that there are several delinquent teenagers hiding in the school......" Jiang Dong casually made up a reason, and followed Li Yifan towards an inconspicuous teaching building that had been inconspicuous for a long time with a security guard in the school. Soon Li Yifan found the place where the girl fell, and they quickened their pace and walked towards the area.

"This piece is indeed relatively hidden, we usually ignore it when we usually inspect it, the teaching building below is already semi-underground, and it has long been unused, and the back door is blocked by plants, and no one usually comes here at all." The security guard pointed to a small bush and a large pine tree in front of him. "These plants hide all the corners of the wall, and I really don't know who is hiding in them, but comrade policeman, no one will hide there on such a cold day."

Li Yifan looked up at the roof of the building above his head, squinted his eyes, pinched the sealed bag with buttons in his pocket, and whispered to Jiang Dong: "Team Jiang, the girl was pushed down from here, let's go over and take a look...... Maybe there will be salvation. But Li Yifan and Jiang Dong both knew that the girl could not be saved.

"She had a button removed from the killer's sleeve before she fell."