Ye Fan's eyes swept over the case materials of Cai Qianqian's case, from the initial autopsy, to the physical evidence at the scene of the dumping of the body, the physical evidence at the scene of the crime, and the confessions of all the people involved, all of whom were carefully studied.

Holding Meng Hang's confession in his hand, Ye Fan read it again, his eyebrows suddenly wrinkled, and a trace of strangeness quickly flashed in his mind, but it flashed too fast and he couldn't catch it for a while.

After pondering for a while, Ye Fan looked at it again, and substituted the assumption that Zhang Cheng was the murderer, reinterpreted this confession from another angle, and combined all the evidence and confession to feel Zhang Cheng's state of mind when he killed people, to imagine why he took the head, and where would he hide it after taking the head?

Zhang Cheng set up a killing game in advance in the teaching building, and when Meng Hang and Cai Qianqian entered the killing game, he confused the minds of the two with the sound of skeleton drums, so that the two of them couldn't help but do that kind of thing.

After affirming that Meng Hang and Qian Qian had been confused, he re-watched Meng Hang's confession again, only to find that the details that had been ignored in his confession, he said that although he and Cai Qianqian were drunk at the time, they were a little drunk, but they were not drunk to the point of confusion, with his temperament, and the meaning of that classroom to Cai Qianqian, it was extremely incredible that the two would do such a thing.

So if her guess was correct, the two of them should have been confused at that time.

Zhang Cheng was hiding outside the classroom and watching gloomily, holding the steel wire in his hand, at a certain moment, his hand was loosened, the guillotine fell, Cai Qianqian's body was in a different place, and Meng Hang fled.

Zhang Cheng quietly walked into the classroom, took the guillotine and Cai Qianqian's head, and then, he saw the diamond necklace on Cai Qianqian's corpse, he was so jealous that he went crazy, took away the diamond necklace, and then tenderly took out the love necklace of the two of them and put it on her corpse, as if she had been wearing her necklace.

At the time of leaving......

Ye Fan flipped through a pile of materials and found a physical evidence examination report, it was under her reminder that Su Liang retrieved an oil painting from the police station at the scene of the crime.

This oil painting was painted by Yu Si and was placed on an easel at the time, along with the works of other students.

Some of the oil paintings look like black marks that have been stained, and after technical inspection, the things on the oil paintings look like they have been stepped on.

When she visited the scene that night, the painting was on an easel, leaning against a corner, covered with a white cloth.

If it has been stepped on, it must have fallen to the ground and then been lifted up again.

Meng Hang's confession did not say that he had knocked down the easel, he only said that he changed the white cloth on the easel, so that the stamping mark on the oil painting was very likely to be accidentally knocked down by Zhang Cheng when he left, and stepped on it, and then helped it up and covered it with white cloth.

After Zhang Cheng took the guillotine and the head, he did not leave immediately, but continued to hide outside the classroom, because he expected that the mentally disorganized Meng Hang would return, and once the selfishness and darkness of human nature were provoked, he would make a very different move from the past.

After Meng Hang returned to the classroom, he cleaned up the scene, and Zhang Cheng continued to confuse his mind with the sound of drums, causing him to become confused, forgetting the most important guillotine and head, and hurriedly cleaning up the scene.

Zhang Cheng laid out this killing game, not only killing Cai Qianqian, who made him hate from love, but also preventing the East Window incident from killing people by snatching his favorite Meng Hang, ruined his reputation, imprisoned, killing two birds with one stone.

The facts went almost as he expected, Cai Qianqian's body was discovered, Meng Hang's crime was revealed, and all the evidence pointed to him, even if he confessed to the truth, it would be too bizarre, and there was no explanation for the missing murder weapon and missing head, so that the police did not believe his confession and deepened his suspicion.

But he didn't expect Ye Fan to believe Meng Hang's confession, and he could lay out such a precise killing game, his mind must have been very cautious, and Ye Fan must have noticed something when he talked to him that day.

It happened that Qian Qian went to the No. 8 bar that night, which should be his territory, so he took advantage of his inattention, charmed his mind with the sound of drums, and took out his words, he didn't expect the police to investigate so carefully, and also found wire traces at the scene, he was afraid that if he continued to investigate, Meng Hang would be able to get away with the crime, and even find out his body.

So he couldn't wait for Meng Hang to be convicted, but he was convicted, and the matter was settled.

So he wrote down Qian Qian's words, and then broke the news directly on the Internet, and even paid to find a few marketing big Vs, trying to interfere with the judiciary with public opinion, and he also cleverly calculated the Meng family and their political enemies.

It's just that he was unlucky enough to meet Ye Fan, and he didn't know that he was followed by a Piao who was following him, exposing his behavior on the Internet, directly revealing his whereabouts, and the platinum necklace he left at that time also became evidence of his suspicion.

He was eventually discovered, but he escaped......

Ye Fan frowned, pressed his palm on the pile of materials, and his eyes flickered.

What did Aunt Li tell her at that time......

She said that Zhang Cheng went to Bar No. 8 only after answering a phone call, and if Bar No. 8 was his territory, why did he need to answer the phone before going?

No, no, no, very wrong.

Ye Fan shook his head violently, after substituting Zhang Cheng as the murderer, everything seemed reasonable and reasonable, there was no flaw, Zhang Cheng was indeed the real murderer.

But in the process of this series of behaviors, she substituted her own understanding into Zhang Chengshi's state of mind, but she felt a very awkward sense of disobedience, which was even more incompatible than when she suspected Meng Hang at that time.

What was Zhang Cheng's motive for killing people? Because of love, he hated Cai Qianqian, who abandoned him, and he hated Meng Hang, who snatched his love with a knife.

But what did he do when he set up the killing game?

He confused the minds of the two with the sound of drums, so that they would do that thing in front of him in the classroom regardless of shame?

Even if he is psychologically distorted, how distorted must it be to have such perverted behavior that human beings cannot understand?

Also, if he kills, he kills people, why did he take Cai Qianqian's head?

With such a sophisticated murder method, he left behind a necklace that would expose him?

Besides, he is just a poor student, where did he get the money to buy popularity, buy marketing big V, buy water army, where did he have the courage to calculate the Meng family and those famous bigwigs in the officialdom?

It's not that she looks down on his courage and intelligence, but the environment in which a person lives determines his vision.

He, a student from a small remote place who has never been out of the campus, how can he have such a game of vision and calculation?