
The moment Zi Yu appeared, he immediately introduced Yao Yao to 'Chen Mo' who turned out to be his pet turtle Jin Yan.
Zi Yu then told Yao Yao that Jin Yan was conducting a human mutilation experiment. He conducted experiments using the program so that he could understand the process of killing, what the killer was thinking and so on more quickly.
After Jin Yan finished with his experiment, Yao Yao submitted a report of the latest autopsy results. As soon as studying it, Jin Yan finally found out about how the murderer committed his crime.
In the early days of his crime, the killer was a bit clumsy but now he has started to evolve and find a more appropriate way.
Jin Yan then returned to the police station to report the findings. According to his analysis, the killer had indeed gone mad since childhood. The killer used to torture animals to express his desire to kill people. But as time goes on, the killer needs much higher enjoyment by killing humans.
The massacre he committed began about half a year ago. At that time, something must have triggered the killer's action. Either it may be due to a failure in business or family or a broken heart.
In his projector screen, Jin Yan shows an example of how the killer mutilated past victims. Based on the number of wounds on the victim's body, the killer mutilated the victims one by one.
But the process of mutilating the latter victim is different, the killer cuts the victim into six parts at a time using a killing machine he designed specifically.
When Yao Yao came home, he saw the fishmonger pack already waiting for him at home. The fishmonger has been alerted by the police about the possibility of his son being alive and Jin Yan is helping the police deal with the case.
News of the killing machine has circulated widely in the community, parents became frightened and locked their children at home.
The next day, Yao Yao returned to the villa and spent her time chatting with Zi Yu because Jin Yan was busy either doing any more experiments in her study.
Xun Ran came shortly afterwards with a new report as they had just found one more corpse. Upon arriving in front of the villa, the mysterious person again photographed him secretly.
Zi Yu brought Xun Ran in to meet Jin Yan who was apparently busy making a replica of his killing machine.o.0 why try to make a replica of his killing machine?
Jin Yan said that if he only needed a lot of knives to make that one tool then the killer was the same. Xun Ran immediately realized that the knives were domestic products that were under government supervision that could not be sold in the usual way so there must be a report of the purchase and sale data, he said, Xun Ran immediately went to look for clues, before finally returning again because he forgot that he had come here his main goal was to submit a report on the latest discovery of the body.
Based on the condition of the corpse that only remains bones, it is likely that he was the first victim. According to the coroner, they could not identify this corpse.
Although the bodies are only bones, they can still do DNA testing. But the problem is they don't have data to match.