Su Cheng explained: "After simulation, when the deceased sits on the inclined concrete lake embankment, if he twists his body, such as going to the side to get the food and water he carries, the clothes and pants he wore at that time can easily cause side slippage."

Xu Xuan said: "No, if Rank uses the slope side to kill someone, he will definitely leave evidence that he has not contacted the deceased."

"Wow, wife, you're so smart." Su Cheng admired: "Yes, that's right, Scotland Yard ruled out the possibility that Rank would lead the deceased to sit in the wrong position. However, Big Pineapple believes that the seventeen-year-old boy has not reached the perfect level of murder, and it is his first time to commit a crime."

Xu Xuan said: "Where do you want to touch? Tell me the answer to my sister quickly."

Su Cheng said: "Don't be anxious... The next answer is: Rank killed people. Big Pineapple found a little bit of evidence of the fishing line. According to the direction of the water flow at that time, Big Pineapple believed that Rank fishing line and the deceased fishing line were tied together. In the image, Rank was standing, probably pulling vigorously, bringing the deceased on the slope into the lake. Interestingly, Big Pineapple believed that Rank had no specific murder plan. He took the deceased to the field he was familiar with and carried out the movement he was familiar with. Maybe at the beginning, he just wanted to show his superiority. Big Pineapple dared not draw conclusions in this case."

“Is there any more?”

"Yes, I have concluded that I think it was an accident and a moral crime. Rank did ask his good friends, that is, the deceased, to negotiate. Their friendship was derived from fishing together since childhood, which is in line with what Rank said about fishing with the deceased for the last time and ending his friendship with a good friend of more than ten years. The deceased slipped accidentally, which may be the reason for the fishing line, but I don't think a high school student who basically took single digits in physics can use the power of pulling the fishing line to kill people. But in the end, it was not that Rank could not save the deceased, but gave up saving the deceased and had the ability but did not save it. It was not a criminal crime."

Xu Xuan let go of Su Cheng's shoulders: "Then please give me a conclusion in this case, but I want evidence."

"Why, it's hard to have evidence in such cases."

"Don't you want to show your talents in front of me?"

"I want to report it." Su Cheng said: "Okay, but ugly words are mentioned first. After hearing you talk about the details of the case, I have no idea. I will do my best. First, we must do one thing, prove that the mother is an incompetent mother."

"Neighbor, teacher..."

"No, most people have tinted glasses for stepmother profession. They will subjectively imagine what might not have happened. For example, in the future, our children are picky about food, and I will be abusive. If you are busy with work and he is tired, the neighbors will say that men just don't care about children. Suppose I divorce you and find a beautiful new wife. She has a child. If the child loses weight, the neighbors will say that the stepfather is the stepfather."

"It makes sense." Xu Xuan nodded and said, "By the way, I have a point I want to tell you first."

“What is the point of view?”

"I will never get divorced in my life. But I can accept being widowed."

"..." Su Cheng said: "Let's go and visit the forensic doctor first."

...

At Su Cheng's request, the forensic doctor conducted a new autopsy on the little girl. The first autopsy was very simple, first checking the pharmacology and then checking the cause of death. This time, Su Cheng asked the forensic doctor to test the scars.

The forensic doctor is Shui Panpan, the beautiful married female forensic doctor who once had a crush on Mutou Zuo Luo. Zuo Luo was not here, and Shui Panpan did not say anything else. He was not dissatisfied with Su Cheng's request and was very serious about the little girl's body. Su Cheng is now famous and has orders from his superiors to cooperate with Su Cheng's work as much as possible.

"Scald." Shui Panpan pointed to a scar on his left arm: "The temperature will not be very high, it should be between the temperature of the boiling water and the stove. Several scars on his calf were scars made of using soft objects, similar to ropes, whips, or soft clothes hangers within three days before his death."

Shui Panpan said: "It's so cruel, only the stepmother can do it."

Su Cheng said to Xu Xuan: "As a police officer, forensic doctor, he can even draw conclusions based on his disgust towards his stepmother."

Xu Xuan reminded: "Water Forensic Doctor, you cannot draw conclusions, the case handlers are easily misled by you."

Shui Panpan quickly apologized: "I'm sorry, I'm very angry."

Su Cheng said: "Why are you angry? She may not be killed by her stepmother, and based on the current autopsy evidence, it is impossible to prove that her stepmother has abused the girl."

Shui Panpan said: "But there are also neighbors and teachers' confessions." Obviously, as a mother, Shui Panpan knew too much.

"So the second step is to visit these neighbors, teachers, and stepmothers... To be honest, I don't like to do this kind of work." The most annoying thing is visiting. It is undeniable that even the American police with advanced crime laboratory have strong traditional criminal investigation capabilities and representing the most advanced criminal investigation concept, more than 70% of the cases are directly related to visiting.

...

I won’t talk about the visit process. During the interrogation, the stepmother answered the questions raised by the witness in detail. For example, the child had dinner for one week because she was really sick. She and her son went to the hospital for treatment due to skin infectious diseases. The reason she did not explain to her daughter was that her son was in the second grade and her daughter was in the first grade. If the matter was informed, it would be very troublesome for the son and daughter because the school would ask for various treatment reports. As for the parent-teacher meetings, the situation was the same. The whole school held a parent-teacher meeting together. The stepmother believed that the second grade homework was more important than the first grade, so she only attended the second grade son’s parent-teacher meeting. Since they were reorganized families, the teachers did not know that the stepmother’s two children were in school.

There were also scars on the calf. The stepmother admitted that she beat her with a clothes hanger, but she hit her because she lies. Every time she did something bad, she said that it was her brother who did it, once and twice. Later, the little girl would talk back, but she hit the little girl when she was really angry. This was confirmed by the little girl's biological father.

It seems that stepmother is not the kind of stepmother we think now. When Xu Xuan was about to end the interrogation, Su Cheng, who had not spoken, said: "I have a few problems in the end."

"Speaking."

"The first question is that you said that your parents' meeting only attended your son's parents' meeting because your second grade is more serious than your first grade and your son's grades are not very good."

"Yes."

Su Cheng said: "But I don't understand why you didn't explain to the first-grade teacher why you didn't attend the parent-teacher meeting?"

"this……"

"The first possibility is that you forgot, you don't care about your little daughter at all. The second possibility is that you deliberately forgot, because your little daughter has good grades and is very popular at school, and she is specially recruited by one year to join the school choir. The best way to reduce the teacher's view of her children is that parents are inaction, and teachers are also human beings after all, and they also have some tendencies in class. The third possibility is that you originally planned to tell the first-grade teacher the reason, but because of the above two reasons, you just don't know. Because your husband is an engineer manager, and his work on a business trip is confidential and you can't carry a mobile phone, so the teacher has never known the truth."

The stepmother thought for a while: "Okay, I admit that I think my son is more important. In addition, I don't explain to the teacher that it is not the reason you think, but because I don't want others to know that my son is a reorganized family."

Su Cheng said: "The second question is that I read the hospital report you provided. Scarlet fever. This disease can usually be cured after effective treatment in one to two weeks. But according to my medical knowledge, scarlet fever is very contagious. Why isn't my younger daughter infected?"

"Because she has no symptoms."

"Haha, is that? When adults have pharyngitis and tonsillitis, if a child catches a cold, there is a certain chance that the child will get scarlet fever. According to the regulations of the health department, once your child is diagnosed with scarlet fever, then all people who have been in contact with him, especially children, must be isolated and observed. However, in the report, you said that you live alone with your son. And because it was a weekend, your son only contacted him. After you sent your son to the hospital, you were on the list of isolation observations. You called your daughter and said that you and your brother went to another place, told her where you had money, let yourself buy food, and take good care of yourself. Have you never thought that your daughter might have scarlet fever also been infected with scarlet fever?"

“…”

"I found that you have a very conflicting personality. Can you explain it to me?"

The stepmother was silent for a long time and said, "You young people don't know how difficult it is to do a stepmother. Everyone suspects that you are abused by other people's children. At first I wanted to gain her trust and treat her as my own child. But her biological mother taught her to be on guard against me, her grandmother, grandpa, neighbor, and even the owner of the convenience store often asked her if I abused her. She treated me as a bad person in this mood. My husband attended the first parent meeting in the first grade. When I came back, I asked me if I abused his daughter. The conscience of heaven and earth, I treated her the same as my own daughter. But the picture drawn by her daughter said that I was Snow White's stepmother."

"With those men's guidance, she started to talk back to me. I was angry and slapped her. She told her mother that she stopped me on the street and led someone to hit me. I was so worried that I could see it too, and I just didn't starve you to death. For example, every day when combing her hair, girls' hair is prone to knots, and they cry when they comb their hair, and they call me a stepmother. I know who taught this word, and I let it go. I don't want to care, I feel tired, and I have never been a stepmother, I don't know how difficult it is to be a stepmother."

Stepmother: "On the day when something happened, I didn't want to take her to the new house, but my husband said before a business trip that there was part of her new house, so he took her to see it. I asked her if she would go, and she said she would go. I admit that I didn't care where she went at that time. I just told her not to get close to the window. You don't understand. You really want to exchange for the trust of a child, but the end you got was a vicious name, and my heart was already cold. I don't blame her, it was adults who taught her to do this, especially her mother. In her description, I was almost eating people. So I don't want to care about her, after all, it's not my own child."

Xu Xuan said: "You said you didn't want to care about her, but you still hit her a few days before the accident."

"Her mother asked her where the family money was put, who cares about it, and asked me what clothes I bought for myself and what clothes I bought for my son. My mother called her father, and his father had a big fight with me and forced me to write notes and never abuse the child. Then she went on a business trip. I felt aggrieved and angry at that time. I saw her drinking milk and drinking all over her clothes, and then I changed my clothes and dragged the floor. I was so angry that I beat her. Your mother wanted to care so much, why didn't your mother buy you clothes? I was so angry..."

The stepmother said, "I know you doubt me, but I didn't push her down."

Su Cheng said: "I believe this. I checked your resume, visited your classmates and your former colleagues. They all thought that you were relatively brave and would not be able to do such things. From a personality analysis, I really don't believe that you would push the little girl down and face us so calmly."

"Thanks."

Su Cheng said: "Don't thank you. Although I don't think you pushed her down, I think you know that she is in a dangerous area. You didn't remind or stop her."

"evidence."

"This is the layout diagram, the framework structure, and your route of action is these green dots, which can prove the route you move in the room. You are making a phone call, holding a notebook to mark the number, and you have to look at the child at the door, right?"

"Yes. I don't remember very much."

Su Cheng said: "Did you see the big green lines above? When you are in these big green lines, you can clearly see the location of the window. The physical evidence group proved that the little girl might have found a gecko and squatted all the way to chase the gecko. According to speculation, it should be related to the story of the tail of the gecko. This story is the story told by the little girl's Chinese teacher two days ago... When you find that the little girl is approaching the windowsill, you did not stop it... Don't worry, I have evidence, the decoration company's people proved that when talking to you, you have obvious signs of disagreement, and even raised the volume. On the phone, I went to the door and said something to my son, and asked the neighbors. "

Su Cheng asked: "Did you see it? You saw her approaching the window and didn't find herself in danger. What were you thinking at that time?"

The stepmother's right index finger touched the nail of the thumb of her left hand, and she was very panicked and nervous. She was not calm enough and did not find that the evidence Su Cheng said was objectively invalid. Perhaps because of the guilt of the little girl's death, or regretting her behavior, the stepmother cried and covered her face with her hands and cried, "I didn't think about anything, I didn't know, my mind was blank at that time, and it seemed that she had the strength to stop me from stopping her. At that moment, I remembered her mother, neighbors, neighbors... and a consciousness told me that I didn't care about her, and I would fall down after death..." At this point, I burst into tears.

Xu Xuan said: "She is only seven years old."

"I know...but have you ever thought about it? A seven-year-old girl doesn't eat apples because she is afraid that I will poison her. She doesn't blame me... it's them, they..."

Su Cheng said: "There are many people in this world who look at people with a colored perspective. They like to despise others from a moral perspective to enrich their sense of happiness. They take many things for granted. But they are them after all. I believe you have worked hard, and I am very grateful for your efforts. But your crimes cannot be forgiven."
Chapter completed!