"Haiyou, this corpse should have been fatally killed by a knife, right?" Nian Yu took a photo of the face of the female corpse and asked Mo Haiyou.

"Well, why do you think so, teacher?" Mo Hai asked rhetorically.

At this moment, the two of them were sitting at the opposite end of a mahogany table by the window, Mo Hai was holding a teacup in his right hand, and Nian Yu was studying the photo of the mysterious female corpse.

As for the general situation of the female corpse, Mo Haiyou's description is not complete, and it is obviously not enough to judge the more accurate appearance and temperament of the female corpse. So Nianyu is still asking questions.

"Because of the look on her face." Nian Yu took a sip of tea and said calmly.

His words made Mo Haiyou interested, and deliberately refuted the teacher and said: "Teacher, I don't think I can judge by her expression, because first, her face is completely covered by a knife, the color of her skin, the shape of her mouth, nose and eyes, the contours of her face and even the eyebrow bones and nasal bones have been broken, how can you see the expression?" Second, even if you can see the expression, the fatal wound of the corpse is not on the face, and I am afraid that it is impossible to tell whether it is fatal by the mutilated expression. ”

Nian Yu glanced at Mo Haiyou's expression that had never changed, and sighed lightly in his heart: "Obviously a very fun-loving kid, I have to pretend to be so cold, I don't know if I will be slapped in the face for teasing the old man!" ”

But thinking about it this way, Nian Yu also did not show his heart on the surface, he said: "Do you remember what I once taught you? It is indeed impossible to restore a completely disfigured face to its original appearance, but we can judge the location of every detail of a person's face and facial features based on the characteristics and shape of the wound. ”

"Yes."

"If you look at the edges of the wounds on her face, none of them are rolled outward, which proves that they were added after death. And the texture was so clean that there was not even a trace of clotted blood, not even where the bones were injured, which indicates that the woman was added to these wounds long after her death. Well, such a wound will basically not be deformed. ”

"It's like if you cut a knife on a dead fish, the muscles of the fish itself won't contract because of the pain, and the wound won't be deformed, unless you put the fish on the fire to roast it."

"But teacher, there is another problem, it is early summer, more than three days after the corpse dies, it will produce green spots due to decay, and it will be swollen or even huge if it is longer, this corpse has been dead for more than half a month, although the murderer put her in formalin solution, the surface has not changed much, but the internal organs that have not soaked into the formalin solution have completely decayed, and when I performed the autopsy, I found that none of the internal organs were intact, and almost all of them had turned into pus."

"And then?" Nian Yu pretended to be casual and continued to ask questions, but there were already some things brewing in his heart, how to talk to Mo Haiyou.

"This body was not soaked in formalin solution all the time, and his wounds were added long after death, you are right, but she was taken out of the embalming three days before we found her, and she was dumped in the secret room of that house, and the wounds were added at that time. During these three days, to be specific, two days and three nights, the corpse has been in a confined space, and there is no guarantee that there will be no changes. How can you tell if a wound won't deform? Mo Haiyou asked.

"Was the corpse soaked in formalin solution all the time before it was put into the house, and it was in a closed state where bacteria could not invade?"

"Yes, it was behind the wall of a rental house, and the body was sealed in formalin solution in a sealed bag by the killer and covered with a sack. Coincidentally, the wall of the rental house where the corpse was hidden was close to the back wall of the garbage transfer station in the community, and there was only one person in between, just enough to jam the bag containing the corpse, and the eaves of the garbage transfer station completely blocked the rain, so the body was well preserved before it was transported up the mountain.

"Did the bag break inadvertently when the murderer hid the body? I mean, small breakage that isn't easy to spot. ”

"Yes, but we only found the outer sack fragments, not the inner sealed bag. However, we found a strong formalin smell between the sack and the wall mezzanine, so it was inferred that the inner seal bag should also have a small break, causing the formalin solution to volatilize. ”

"Isn't it possible that the killer deliberately sprayed formalin solution between the sack and the sealed bag?"

"Impossible, the formalin solution in the wall sandwich smells very strong, you know, no matter how small the space between the houses is, it is impossible to be completely airtight, if it is just sprayed on the outside of the bag, in nearly half a month, the formalin solution has already volatilized. So it must be that the sealing bag in the inner layer is also broken, and the opening is very small, maybe it is only worn out a little bit, and the formalin solution keeps volatilizing and accumulating between the two layers of bags, so that it will have such a strong taste. ”

"In that case, you can be sure that the corpse was at least completely embalmed outside the body until it was transported to Mount L."

"Yes."

"What about in the Bird's House? What is the status of the Chamber of Secrets? ”

"The air is completely out of circulation."

A simple sentence completely catered to Nian Yu's heart, and he didn't need to ask any more, and directly began to describe his thoughts.

"So, my old man summed up a few points, do you see right? First, the corpse is completely immersed in formalin solution for a long time, and the solution has penetrated into the subcutaneous tissue, so after leaving the embalming solution for a period of time, the epidermal layer, dermis layer, including the fat layer, can still remain non-decomposing. ”

"Second, after the corpse is brought to L Mountain, it is quickly put into the secret room, and the interval will not exceed 12 hours, so before the corpse shell has time to decompose, it enters a state of complete vacuum, and bacteria cannot breed, which is equivalent to being in a state of 'freshness' again."

"Third, the internal organs of the corpse were not soaked with the formalin solution, and when the person himself died, there was still some air in the body. Therefore, when the corpse is still in a state of embalming before going up the mountain, the internal organs begin to slowly corrode, but the speed is very slow, because there is no outside air to assist, and the growth of bacteria will naturally slow down. After going up the mountain, there was a period of time outdoors, which caused the corpse to accumulate enough air inside its body, and the internal organs to decay at an accelerated rate, even if they entered the secret room, they could not prevent further decay. ”

"Teacher, that's a good point, you're already fully qualified for half of the forensic doctor." Mo Haiyou praised him, but the words 'half a forensic doctor' made Nian Yu a little unhappy, and he squinted at him.

"And what about half of it?"

Putting down the teacup, Mo Haiyou looked at his watch, the time was already more than three o'clock in the afternoon on May 8, and while answering Nianyu's words, he wondered when the teacher was going to tell him the truth.

"Half of them are the best beauty restoration masters in China."

"So you mean I'm just half-baked as a forensic doctor or a prosthetist?" Nian Yu deliberately avoids the main topic.

"Teacher, you should tell me directly, what is the difference between my restoration of the face of this female corpse! Time does not allow us to delay any longer, and if we wait for one more second, Luo Yifan will be more dangerous. Mo Haiyou said what he thought in his heart, and his calm and sharp eyes stared at his teacher's words.

"He's smart......"

"But drug traffickers are vicious."

He ...... Well, I won't hide it from you, in fact, I've been worried about Roy, old man, but I declare it! It's not like you're worried, I'm just worried that I'm going to cut off my pension money so I didn't follow Roy's arrangement, you can't betray my old man in the future, you know no! ”

Nianyu's explanation made Mo Haiyou feel that he, the teacher, was really getting older and more like a child. Don't worry about the teacher, Mo Haiyou said: "Hurry up and talk about the topic." ”

"Okay," Nian Yu cleared his throat and picked up the conversation: "I just said that you can judge the position of every detail of the human face and facial features according to the characteristics and shape of the wound, I think you haven't forgotten this, you can see it from the face of the female corpse you restored, but you ignored the mood of the female corpse, which is the meaning of the expression I said." ”

"Now that it has been proven that the female corpse has not been deformed by decomposition, we can characterize her as having maintained at least 80% of her original form. On this basis, your restoration of the face of the female corpse is basically in place, but you are not good at perceptual thinking, especially the speculation of the woman's heart. ”

Although this woman's eyes are gone, it can be seen from the shape of the wound on her eye socket that she was in a very calm state when she died, and even had a slight smile. This can also be seen from the woman's face you restored, why is a person so calm before being killed, have you thought about it? ”

"That's because she didn't think the killer was going to kill her."

"What else?"

"She may be friends with the murderer."

"And."

“……”

"So, old man, it's right that I always urge you to hurry up and have a girlfriend!" Nian Yu said with a 'kind' face: "Her expression is not completely calm, it is a shy expression when confessed by the other party, if you treat it as a calm and unwavering expression, the restored face will naturally feel a little discordant." ”

"Why do you think this female corpse's expression is shy?" Mo Haiyou still didn't quite understand.

"Before answering this question, old man, I would like to deny what you just said, this woman can never be friends with the murderer. Because if she was a friend or had known each other for a long time, she would never have this expression, but would have behaved more relaxed and casual. ”

"When you look at the face in this photograph yourself, except for the calm part, do you feel a sense of tension? This shows that the woman and the murderer did not know each other before, and at the same time, the woman's personality should be shy and introverted. Let me put it another way, Haiyou, your attitude towards emotional issues is actually similar to this woman, but you deal with it differently. ”

"Now you put yourself in the role of the person concerned, let me ask you a few questions, don't think about it, just tell me the answer that comes to mind at the first time."

“…… All right. Mo Haiyou thought about it and replied in the affirmative.

"Okay, then let's get started. The first question, if you meet someone who is a complete stranger and has never met you and asks you out to confess, will you go? ”

"No, it won't."

"Second, if he pursues you for a period of time, everything is very detailed, and everything is thoughtful, and then asks you out to confess, will you go?"

“…… I don't think so. ”

"Thirdly, what would you do if he concealed his identity and kept an eye on you, or if he didn't even let you see his own appearance, but just kept doing some inexplicable things around you, and after a while, you found that there seemed to be a mysterious person around you, but you couldn't grasp his movements, what would you do?"

"Find a way to expel him."

"Well, what do you do when you try to expel him, but suddenly receive a confessional letter and a gift before you act, and you have to imagine yourself as a person who lacks care, and the gift he gives is something that you particularly want or that can particularly arouse your feelings? Will he continue to be 'brutally' expelled? ”

“…… I don't think so. ”

"Fourth, you waited for a while to see what he was going to do, and during this time, you will receive love gifts from him every week or every month, what will you feel during this time?"

"I will want to know more and more about his true face," Mo Haiyou replied very simply this time, he continued to ask questions without waiting for Nian Yu, and said to himself: "Teacher, I understand, the murderer wants to arouse the victim's curiosity, and then step by step into the trap he set up in advance, the victim thought that the murderer would confess to her, although he was still very hesitant to accept it, but the curiosity prompted the victim to go and see who the confessed person was, otherwise she would have trouble sleeping." ”

"This is what the murderer wants, and on the day of the meeting, the murderer really prepared a confession scene in order to make the victim take it lightly, and when the victim lowered his head shyly, the murderer took the murderer by surprise, so the calm and shy expression was retained on the victim's face. This is the reason why you will judge that the victim was killed with a knife. And what I ignore is her inner emotions, so the restored face will be unsatisfactory. ”

"Actually, I should have thought of this a long time ago, and from the beginning, our investigation direction was to start with a foreign woman who was completely unfamiliar with the murderer, and her personality was not much different from what you described. When I get back, I'll reconstruct the woman's corpse and print out the photos for you to see again. ”

"Haiyou, I don't mean to say this to help you reason about the case, with your wisdom, you should understand what I mean."

"Teacher, although the emotional factor is indispensable for the appearance restoration technique, the boundaries must be clearly defined when investigating the case, Luo Yifan is too emotional, which will bring danger to himself and his family. I understand what you mean, I'm a detective, and I can't let my feelings take precedence over the law. ”

"No one will put feelings above the law, the law is not intolerant, we naturally can't have the slightest selfishness in dealing with evil, but what about people who have been harmed by evil and caused themselves to fall into the quagmire?" When Nian Yu said this, a trace of pity flashed in his eyes.

"Teacher, what do you mean? I do not quite understand. ”

"Then I'll tell you a story!" Speaking of this, he told the story of Luo Yifan and Coco to Mo Haiyou in detail, and showed Mo Haiyou a text message, which was sent by Luo Yifan last night, which told the story of Coco and Liang Xiaomei, as well as a photo of the account book with the name of the downline.

Then Nian Yu asked Mo Haiyou: "For such special victims, if they sincerely repent and accept all the arrangements of the law, can the law tolerate mercy?" ”

“……”

Without words, Mo Haiyou looked down at the text message sent by Luo Yifan, for a long, long time, until Nian Yu felt that he didn't seem to be able to speak again, Mo Haiyou suddenly said: "Teacher, why can you always change me?" After my mother left, I thought I would never change. ”

"Because love is still in your heart."

"Okay, teacher, I'll help her, where is Luo Yifan now?"