This conjecture, after the homicide case in the Yuanming community, Chang Qingshan also thought of it for the first time, and at the same time, he also thought of three more cases in the future.

Chang Qingshan quickly glanced at the documents, basically the same as what he had, after the homicide in the Yuanming community, Chang Qingshan often secretly investigated around there, but without the identity of the police, it was very difficult to investigate, and there were some things that could not be investigated Chang Qingshan was solved through this document, and the last page of the document was the doubts and some speculations raised by Fang Lubai.

The suspicions are summarized in detail, such as the first crime, the murderer concealed the delivery man's method of killing, and in the second case, he boldly left the takeaway at the scene, what is the purpose of this? For example, since the murderer did not do it at random, what characteristics of the deceased are in line with the murderer's idea of wanting to assemble the corpse?

Everyone is a complete corpse, why would the murderer use different parts of each person to assemble a person, and if there is such a perverted idea, why not find five people at random, wouldn't it be easier?

Chang Qingshan understood that Fang Lubai asked this question to find the common ground between the two deceased, so as to protect the murderer's next target before the third case occurred.

Chang Qingshan took a general look at these doubts and inferences, basically similar to what he thought, Chang Qingshan was about to sit down and look at it again, Lao Sun suddenly said: "Don't look at it, it's the same after watching it a few times, this murderer is very cunning, he doesn't leave any traces of crime, I'm afraid it's a tricky character, your friends from the criminal police team have summed up the same as my grandson's intentions, but there is one thing I don't agree with."

"Which point?" Chang Qingshan wanted to hear what this old criminal policeman had to say.

"That's it." Lao Sun grabbed the document and flipped to the end: "On this, the guess of the rectangle and the circle, he said that the task force said that this was a mark left by the murderer."

"Huh?" Regarding the inference of rectangles and squares, Chang Qingshan was also more in favor of the inference of marks, but he could not think of other inferences.

Lao Sun sold a pass, and only said two words: "Convey."

"Hey, I said Lao Sun, why are you still selling Guanzi. What does it mean? ”

Lao Sun sat down, poured a cup of hot water, and took a sip slowly, Chang Qingshan was anxious: "I said Lao Sun, you have to make it clear."

Lao Sun smiled: "I haven't read well now, I'll tell you the truth, the rectangle and circle pattern are exactly the same as the Vitruvian people painted by Leonardo da Vinci."

Evergreen Aoyama was stunned, Leonardo da Vinci knew that it was the celebrity who painted the Monta Lisa and the Last Supper, but this Vitruvian man, he had heard for the first time.

Lao Sun explains: "The Vitruvian Man is a world-famous sketch created by Leonardo da Vinci around 1487, which actually depicts the perfect proportions of the corpse and the golden section. He depicts a nude sturdy middle-aged man, arms slightly tilted upward, legs spread apart, with his head, feet, and fingers as endpoints, just outside a circle. At the same time, another image is clearly visible in the painting: a man stands with his arms outstretched, with his head, feet, and fingers as the endpoints, just outside a square, exactly like the one painted by the murderer at the scene. ”

Chang Qingshan frowned, so the murderer was not just assembling the corpse, but assembling the most perfect corpse in the world, which also explains why the time lapse for the murderer to start is so long, because not everyone is in line with the perfect corpse! Such a person, she needs to constantly search and investigate to be able to identify.

Chang Qingshan stood up, he finally understood the connection between the two deceased, there is no perfect corpse in the world, but there will always be a perfect part in everyone's body, for example, someone's appearance is beautiful, someone's hands are beautiful, if these most beautiful things are assembled together, it will not become the most perfect thing in the world.

The connection between the two deceased is, firstly, to be in line with the perfect corpse of a Vitruvian man, and secondly, to a certain part of the body that must be beautiful.

Chang Qingshan quickly rummaged through the photos of the deceased Cai Chunling before his death, and carefully observed it: "I said Lao Sun, this is not right, why can't I see that this deceased is beautiful."

Lao Sun patted Chang Qingshan's head: "If you see that people are not beautiful, they must not be beautiful, I look very good, but these eyes are a little smaller."

Lao Sun's tone was yin and yang, Chang Qingshan also reacted for the first time, Lao Sun's meaning is very simple, everyone's vision is different, the lover's eyes are out of Xi Shi, the deceased Cai Chunling is indeed not beautiful in their eyes, but in the eyes of the murderer, it is the most perfect, the only fly in the ointment is the eyes, so the murderer gouged out the eyes.

"In fact, when the murderer committed the first case, she conveyed a message to your Lucheng Criminal Police Team, that is, she was going to assemble a perfect corpse in the world, but unfortunately none of your Lucheng Criminal Police Team found it."

Chang Qingshan couldn't help but praise: "I said Lao Sun, you can do it, wake up the person in the dream with a word, if it weren't for you, we wouldn't be able to think of it even if we wanted to break our heads!"

Lao Sun was complacent: "That is, my grandson is also not old, but usually my grandson likes to be a cat, and this tiger is left to you young people."

"Old Sun, I can't see that you still have research on Leonardo da Vinci."

Lao Sun waved his hand, Chang Qingshan took out a cigarette, and Lao Sun took it and took two puffs before telling the truth.

"Actually, it's a coincidence, when I was in college, there was a professor in our department who was obsessed with Leonardo da Vinci, so every year when freshmen had their first class, he would take us to the playground to conduct Vitruvian experiments, and no one in the class would meet the golden ratio, so I was very impressed by this. As soon as I saw the picture from the scene, I was reminded of the Vitruvian people. ”

Chang Qingshan sneered: "I feel that you have stepped on shit luck, I thought your grandson was still a nerd in private."

Lao Sun smoked disappreciably, and after half a cigarette, Lao Sun reminded: "Qingshan, the mobile phone in your pocket has been ringing for a long time, why don't you answer the phone?"

Chang Qingshan touched his pocket and found that the mobile phone was vibrating, when he went outside just now, he turned the mobile phone to vibrate, and when he came back, he forgot to change it back, and now he was dialed by Lao Sun a little, and he thought about many things clearly, he was too excited to feel it for a while.

Chang Qingshan took out his mobile phone, and on the screen of the mobile phone was a familiar name: Cheng Xi.

Lucheng Criminal Police Team, Cheng Xi jumped up and down in the bureau lively, but was directly caught by Fang Lubai in the office for criticism, in fact, it was not criticism but a few nagging.

Finally, Fang Lubai asked, "Have you contacted Chang Qingshan?"