Ji Feng didn't understand where Jian Jing's depression came from, nor did he understand why she was so heartbroken.
"Isn't it just a pair of shoes?" He said perfunctorily, "Come and check the surveillance."
Jian Jing: "Please give me one."
Ji Feng's intuitive radar was activated. He didn't dare to offend anyone at any time, so he quickly downloaded a video. However, when he opened his own video, her video had also been transmitted. "Your internet is really fast."
"The school has 5G." Jian Jing looked indifferent and lowered her head to look at her phone.
I have to say that the police are very efficient. With so many surveillance cameras in the school, they have accurately found the suspect's footage.
Cheng Jiayou naturally didn't need to worry, as Wang's roommate and Zhang's best friend were all there.
Let's take a look at the testimonies of several people: Wang's roommate went to the dormitory after the interview, Zhang's best friend accompanied the deceased after the interview and left on her own, Zhao Xuan, President Fang, and Liu Kai went to the Student Union office after dinner.
The layout of the school is with the lake in the center, the teaching building on one end and the dormitory area on the other end, as shown below.
... ... ... door... ... ... ... .
... ... ... ... ... ... ... ... ... ..
Teaching Building... Library... .Administrative Building...
Teaching Building... Lake... ... .. Laboratory Building..
Teaching building... Parking... ... ... ... ... ... .
Teaching building... ... ... ... ... ..Gymnastics...
... ... ..dormitory area... ...sports field...
... ... ... ... ... ... ... ..Museum... ...
Judging from the route, it is not uncommon for Wang and Zhang to appear by the lake.
Jian Jing compared them carefully. Wang's roommate appeared at the entrance of the milk tea shop, across the street from the lake, while Zhang's best friend appeared even closer, not far from the lake.
By dragging the progress bar, you can see that Wang's roommate walked to the trash can and threw away a ball of paper towels - she just bought a grilled sausage at the milk tea shop.
When Zhang’s best friend saw the deceased fall into the water, she rushed to the lake anxiously.
But what's the point? There are more than a few opportunities to destroy evidence. If the murderer is careful enough, he should clean up the place after poisoning, and there is no need to wait until he is arrested before taking action.
Jian Jing said, "Most likely we won't find it."
"Even if there is only a 1% chance, we still have to find him." Ji Feng taught her, "Don't think the prisoner is too smart. Oftentimes, when people get flustered, they can do anything stupid. But this is our job and has nothing to do with you."
Jian Jing raised her eyebrows: "What does that have to do with me?"
"Let's analyze it. Everyone has a time to commit the crime, and everyone also has a chance to destroy the evidence. So to find a breakthrough, we have to investigate from two aspects." Ji Feng raised his finger, "The source of the murder, and the motive for the murder. We will investigate the former, and the latter..."
Jian Jing frowned.
After a while, he asked, "Has anyone mentioned me to you?"
Ji Feng gave her a thumbs up, praising her understanding: "Little girl surnamed Zhang."
But Jian Jing was not happy: "I'm not good at this kind of thing."
"Teacher Jian, this is called psychological warfare." Ji Feng encouraged, "It's a waste of time to try each case separately. Your school also requires us to solve the case as quickly as possible to avoid panic. In extraordinary times, extraordinary measures must be used. I absolutely believe in your potential."
At this point, Jian Jing had no choice but to nod: "I understand, okay."
The two walked around the lake and came to the principal's office. The others had already taken very detailed notes.
What a flaw.
Ji Feng made a glare at Jian Jing. She took a deep breath, prepared her acting skills, walked up to Zhang's bestie, and grabbed her collar: "Jin Meixian and I have a conflict, huh?"
The "hmm" was a perfect imitation of the tone of the overbearing CEO in idol dramas, cold, disdainful, and condescending. Of course, it would have been more courageous to slap her directly before, but Jian Jing couldn't bring herself to do it, so she had to imitate the posture of a street girl.
—I learned it from the little girls in Jiang Baiyan’s crew.
Zhang's best friend was stunned for a moment, with a hint of panic in her eyes: "I am telling the truth."
"What's the truth?" Jian Jing sneered, "Come here and let me hear it."
Zhang's best friend blushed and stammered, "I, I also listened to Meixian."
Jian Jing was a little surprised at her obedience, and pressed on: "Oh?"
Zhang's best friend didn't want to give in, but she was used to being a follower, so she couldn't be tough with Jin Meixian. Jian Jing's momentum was stronger than the arrogant Jin Meixian, and she was murderous. She wilted all of a sudden: "She said... you are shameless... or something, to smear you... I'm just telling the truth."
Jian Jing recalled the conflict this morning. Zhang's best friend must have lied, and Jin Meixian just had something against her.
It is very satisfying.
She and Cheng Jiayou only met for the first time in September and have not spoken a word to each other since then. How did Jin Meixian get the information about her
His gaze turned to Zhao Xuan. She did not dodge or avoid him, showing no shame at all. Then he looked at Liu Kai beside him… He avoided his gaze evasively, vividly explaining the meaning of the word "sly and cunning".
"It's you." Jian Jing understood everything and stared at him. "You hold a grudge against what happened on the hike that day, so you whispered something in Jin Meixian's ear on purpose. How come you can't get me with your position in the student union, so you want to use Jin Meixian's knife to kill someone? Let me guess, you want to take away my place in the postgraduate entrance examination?"
How much energy a student can exert is nothing more than the small space of the school. Ji Feng hinted that Jin Meixian's family was well-off, which put a lot of pressure on the school, forcing them to solve the case as soon as possible.
Liu Kai wanted to get her, and the best way was to kill her with a borrowed knife.
Jin Meixian is a proud person. If you say it nicely, she is innocent, but if you say it badly, she is just naive. If you hear that she and Cheng Jiayou are not doing something, it would be strange if you don't take action.
Only this can explain her "exam" remarks made this morning.
Jian Jing thought she was showing off at the time, but then she thought about it and realized it was clearly a threat.
"You are quite courageous." Jian Jing said calmly, "This afternoon, I heard you asking Jin Meixian about her internship. Did you learn about her company?"
She said to Cheng Jiayou: "Your brother is trying to steal your girl, and you're suspicious all the time?"
Liu Kai was terrified. He thought about how quickly she had figured out the dragon vein, and how quickly and accurately she had thrown dirty water at him. He blurted out in defense, "Don't talk nonsense."
The job introduced by Jin Meixian was about to fail, and he still had to cling to his "brother".
Cheng Jiayou was confused.
But he was not a bad person by nature, and would not make malicious assumptions about his brothers. He said hesitantly: "It's all misunderstanding." However, he was not clear whether Liu Kai's bad words were a misunderstanding or his attempt to steal someone's girlfriend was a misunderstanding, and it was obvious that he himself was also confused.
However, Jian Jing did not intend to give up easily.
She did this not to vent her anger, but on purpose.
Judging from the current confessions, Wang's roommates had some grudges against the deceased, but it seemed to be just an emotional aversion, without a clear interest. Zhao, Liu, Fang, and Zhang were more or less involved with the deceased, but it seemed that they were only involved in the case by chance, and no flaws could be found.
This is a very difficult situation for the police. They must find evidence before they can continue to interrogate the suspect. According to their efficiency, it will take at least two or three days.
Ji Feng wanted to try another approach.
Just like the prisoner's dilemma game, when people know that a win-win situation is the best solution, they always make unwise choices for various reasons.
Just now he told Jian Jing about Zhang's best friend's complaint, just to hint at her as an induction.
Just like Werewolf, when someone accuses you, you must refute it while also putting the blame on others. Attacking is the best helper.
In the process of mutual accusations, if you pull out the radish, you will also get to the bottom of the dirt, and you can dig out the secrets hidden by others.
So, at this moment, the truth is not important, what is important is fighting.
Jian Jing lied with her eyes wide open: "Is Jin Meixian looking for a signed photo of a singer named Fan?"
"How do you know?" Cheng Jiayou was confused.
Jian Jing pointed at Liu Kai and asked, "Is the wristband he uses the brand endorsed by that singer?"
Not wanting others to notice, Liu Kai quickly covered his wrist.
Cheng Jiayou didn't believe that many of his friends had anything to do with his girlfriend, but... "Liu Kai?" He was stunned.
"Jiayou, listen to my explanation." Liu Kai said quickly: "Mei, she wanted his autographed photo. I happened to buy a wristband of a certain brand and won a signed photo, so I gave it to her."
Jian Jing stabbed quietly: "You used a different brand before."
Shortly after she obtained the intermediate card, her observation ability allowed her to remember the characteristics of each person: Liu Kai was using a very expensive brand at the time, he liked to show off, often stretching out his arms as if nothing happened, and Zuo Xin even complained about his pretense.
Cheng Jiayou lived in the same dormitory with him, so he naturally knew more about it than Jian Jing: "You just changed it recently."
Liu Kai was in great pain, he bought and returned the product nearly ten times, opened three aliases, and repeatedly bought the same wristband, all in order to use the singer's photo to please Jin Meixian.
But it’s all for finding an internship.
He must be crazy to like a beautiful lady like Jin Meixian.
"Have you ever had anything to do with Jin Meixian?" Jian Jing smiled and gave him a taste of his own medicine.
Liu Kai is a villain, and villains usually choose to sell out others to save themselves when they are in danger. He bit out another person without hesitation: "Bullshit, if we really want to find someone who has a heart, President, it should be you, right?"
He thought clearly that Cheng Jiayou and Jin Meixian could help him find a good job, and although the president's status seemed to be one level higher, he actually did not have much power, not to mention that he was about to graduate, so what was the point of being the student union president
Between the good friend and the useless president, you can probably tell which one you offended.
"I saw you pulling her into a corner and talking to her earlier," Liu Kai was a good dog, good at biting people, "was it because you were chasing her and she fell in love with you, but you couldn't get her and got angry and killed her directly."
Others: The melon smells so good.
President Fang was flustered for a moment when he thought about being bitten, but he quickly calmed down: "I have a good impression of her, but after they were together, I never thought about anything else. I just wanted to make things clear that day, and I didn't expect you to misunderstand me."
He held onto his glasses and casually said, "I'm a boy, so I'm more open-minded. But Zhao Xuan, I also advised you to give up, but unfortunately you didn't listen."
Jian Jing was amazed. What a villain, what a hypocrite. No wonder Cheng Jiayou is doing okay. It's all thanks to the support of his peers.
Zhao Xuan sneered: "President, you should just speak frankly, why are you making insinuations?"
"I just said it casually, I don't mean anything else." President Fang smiled, "Anyway, everyone knows it."
"Really? You guys make me sick." Zhao Xuan couldn't stand it any longer. "Why, just because I like Cheng Jiayou, I would kill someone for him? Are you crazy or am I? Does he deserve it?"
When people are pushed into a corner, they can still diss the person they liked before, not to mention that when the white moonlight fades, it's just a grain of white rice that will stick to your clothes.
"I have already found a good company to intern at, and my boss gave me a regular salary during my probation period. Although the boss's son is uneducated, he is rich enough and is pursuing me." She felt as disgusted as if a fly had fallen into the food. "I am crazy. Killing someone for Cheng Jiayou? I am crazy."
Cheng Jiayou was very embarrassed, and he acted as if he was the cause of trouble because of the beauty. He quickly said, "Don't argue, everyone. Zhao Xuan and I are just friends. We are classmates. How could we kill each other for a trivial matter?"
Zhao Xuan didn't appreciate it.
She had given up on Cheng Jiayou for two months and her feelings had faded. She was often involved in scandals because of him. Even though she knew rationally that it had nothing to do with him, she couldn't help but vent her anger emotionally: "I'm going to say something harsh. You've been biting like a dog in front of us. It's either for Jin Meixian or for you, Cheng Jiayou, but you—are you really suspicious?"
Cheng Jiayou was extremely surprised and asked, "Why would I kill my girlfriend?"
"You had a fight the night before last." Zhao Xuan said calmly, "I'm sorry, I didn't mean to eavesdrop, but you had a fierce fight, didn't you?"