Wang Wenhua took out his mobile phone and looked at it, and hurriedly said to Qiu Yu: "I'm sorry, I'll answer the phone." With that, he opened the door and walked out.

After a while, he walked back briskly, and said with an embarrassed face: "Brother Qiu, I'm sorry, there is an urgent matter in the bureau for me to go back." That's all for you to look at slowly. I'll come back to you in two days. After speaking, no matter what Qiu Yu's reaction was, he walked out quickly.

"Brother Qiu, Jiang Weimin is Li Shuxian's husband, do you remember?" As soon as Wang Wenhua left, Wang Bing sat down next to Qiu Yu and said with a solemn face.

"Remember, he seems to be a rich and powerful guy, right?" Qiu Yu opened the file in his hand and said casually.

Wang Bing nodded, sighed again, and then said with some sadness: "I really didn't expect that in just over ten days, a home would be so completely gone." It's good that they don't have children, otherwise, the children would be really pitiful. ”

"Yes! Maybe that's fate! Qiu Yu also sighed, and first looked at the photos in the dossier.

Very similar to the previous cases, the bloody photos made him feel a bloodstained world again.

Wang Bing poured a glass of water, peeled off a lollipop and handed it to him, and then sat quietly beside him. Looking at the information in the file for a while, and looking at Qiu Yu for a while, I don't know what I'm thinking.

After about two hours, Qiu Yu raised his head and said with a solemn face: "The central scene, that is, the location where Jiang Weimin was found, is the second floor of the most ordinary civil structure building in the countryside. The second floor of this type of farmhouse is usually a whole room, which is used to store crops and sundries. The upstairs of the scene had been removed a lot, and it seemed very empty, and the deceased was tied to the pillar in the middle. ”

"There was a lot of blood at the scene, mainly dripping, flowing, and a small amount of splashing. All the bloodstains are consistent with the position of the deceased who was tied, which is enough to show that the deceased was indeed tied here and killed while he was alive. The corpse spots on the body surface of the corpse were extremely inconspicuous, which also coincided with the conclusion that the cause of death of the deceased was hemorrhagic shock. ”

"Wait, what does this corpse spot mean?" Wang Bing asked with a puzzled expression.

"What? Don't you know? Qiu Yu was a little surprised.

"You've never said it before, how do I know?" Wang Bing actually looked confident.

"Didn't you study criminal investigation? Why don't you even know this? Qiu Yu was even more surprised.

"I studied a little, but then I didn't become a criminal policeman, and I slowly forgot about it." Wang Bing said with some embarrassment: "I've heard of corpse spots, but I don't know what it means. ”

Qiu Yu had a black line at his end, and could only say helplessly: "I thought you knew, so I didn't even mention the first few cases." After a pause, he explained, "A corpse spot is a kind of stain formed by the precipitation of hemoglobin in the human body and then soaking into the surface of the skin. Hemoglobin is in the blood of the human body, and after death, the blood stops flowing, and these hemoglobin will slowly precipitate to the part of the body facing the ground due to gravity, and invade the skin. Over time, it will naturally form spots on the surface of the skin, so it is called corpse spots. This is the most popular saying, you should understand, right? ”

Wang Bing thought for a moment, and then said with some excitement: "I understand, these people who were killed by the Red Devil almost all had their blood drained, and a large amount of hemoglobin also flowed out of the body with the blood, so the corpse spots of these corpses are not obvious, is this what it means." ”

A hint of surprise flashed in Qiu Yu's eyes, this time it was not because she didn't know about the corpse spots as a criminal policeman, but because she had just said the first half, and she already knew the answer later. He couldn't help but give a thumbs up, and said to himself: "This kind of understanding, it's really a pity not to be a criminal police officer and go to be a special policeman." ”

Wang Bing was a little proud, and asked puzzledly: "Then if this corpse spot appears, what is the effect of the analysis and inference of the case?" ”

"It's very useful." Qiu Yu said with a serious face: "Corpse spots generally appear within two to four hours after death, and develop to the most serious extent in about twelve hours, generally speaking, if it exceeds twenty-four hours, it is completely fixed, and it is no longer possible to change until the corpse is decomposed." Therefore, corpse spots can be used not only to infer the time of death of the deceased, but also to determine whether the body is likely to be transferred and discarded. ”

Wang Bing thought for a while, and suddenly said with some excitement: "I understand, since corpse spots belong to the substance that precipitates into the skin, due to the influence of gravity, no matter what kind of posture the corpse presents, it can only appear on the side facing downward. She paused, found that Qiu Yu's eyes were full of appreciation, and continued to say excitedly: "If a corpse has neither a large amount of blood loss nor corpse spots, it means that the death time is not long. If the corpse spots appear in opposite places at the same time, or on different sides, such as the front and back of the body, this indicates that the body should have been transferred or discarded. ”

Hearing this, Qiu Yu couldn't help but admire her understanding, and couldn't help but give a thumbs up again.

Wang Bing was very happy, her pretty face was slightly red, and she actually said a little shyly: "Okay, don't disturb your thoughts, and go on." With that, he peeled another lollipop and put it in his hand.

Qiu Yu put the lollipop in his mouth and ate a few bites, and then said: "The grimace photo on the chest of the corpse is indeed consistent with the pattern of the previous cases, but I always feel that something is wrong, but I can't say it for a while." ”

Wang Bing took this detailed photo that specifically reflected the grimace picture, looked at it carefully, and said with a frown: "It seems that there is nothing wrong!" That's the pattern. ”

"Leave it alone for now, and we'll study it later." Qiu Yu continued: "There is a large amount of uniform dust on the ground at this site, which indicates that it has indeed been uninhabited for a long time. According to common sense, there should be a lot of dust footprints left on the ground in excellent condition, but unfortunately there is nothing, so it can be determined that the scene was indeed cleaned by the suspect, which is extremely consistent with the Red Devils' style of crime. He paused, and then said, "The rope used to bind the corpse is the same material, color, and thickness as found at the scene of several other crimes. The corpse was backed against the pillar, with its hands behind its backs and its feet about ten degrees apart, tied in the simplest of dead knots, so that the way it was tied was also very similar to that of the previous case. ”

"In this way, there should be no doubt that the Red Devils committed the crime." Wang Bing couldn't help but say.

"Well, judging from the current situation, it basically coincides." Qiu Yu also frowned tightly and said, "However, I always feel that something is not quite right, and I can't say it for a while." ”

"Don't be in a hurry, there's a lot of time, take your time." Wang Bing's face was full of concern and encouragement.

Qiu Yu nodded, and said, "The one hundred and three sharp weapon wounds on the corpse should also be caused by an extremely sharp blade, which is very similar to the previous corpses. There were three blunt force injuries to the head, and if I'm not mistaken, the deceased was knocked unconscious by these three blows, and then he was tied up and brought to the scene. He thought for a while, and then said: "The deceased had a lot of food in his stomach, as well as alcohol, and the time of death was within two days of the discovery of the body, all of which were very consistent with the situation that Yang Rui encountered that day." Therefore, this is enough to show that Jiang Weimin was killed when he was chasing the Red Devils. ”

"Alas, this man has drunk too much wine, and he really has no brains to do things." Wang Bing looked sorry.

The deceased had a Type 92 pistol in his mouth, with a large number of glove marks on it, and Yang Rui's DNA was extracted, which is enough to show that this gun is the one that Yang Rui was snatched at that time. The bullets in the gun were all there, and no gunshot wounds were found inside or outside the body of the deceased, indicating that the suspect did not think of using a gun to kill people at all, or that he did not bother to use a gun to kill people at all. ”

"Why?" Wang Bing looked puzzled.

"Because, using a gun to kill people really makes the deceased die too painfully, and it can't achieve the effect he wants at all." Qiu Yu's face was solemn, and he said slowly: "Perhaps, only by using that way of Ling Chi's execution can the hatred in his heart be reduced." ”

"What does it mean to put a gun in the mouth of the deceased? Is it also a provocation? ”

"Maybe! In my opinion, in addition to making the dead unable to make a sound, perhaps, it may also be a warning and catharsis. ”

"Is the eight big characters on the wall also a kind of catharsis for the suspect?" Wang Bing asked with a serious face, "Why did he do this?" ”

Qiu Yu thought for a moment, and then said with a solemn face: "The crime is extremely evil, and there is more than enough to die, these eight words are enough to explain all the motives of the Red Devil for killing." Perhaps, Jiang Weimin was really the last person he wanted to kill, so he left these eight big characters on the wall as a kind of catharsis, or rather, as an announcement. The Red Devils want to tell us that none of these dead people deserve sympathy, they are all damned people. ”

"That's right, that's how it should be." Wang Bing also had a solemn face, nodded, and said, "Isn't this enough to show that the Red Devil Butcher has done what he wants to do, and has even left here." From now on, there will never be such a bloody case in Jingcheng again, and we will no longer have a chance to find out this person, and this series of murder cases will become an unsolved case from now on. ”

Qiu Yu sighed, frowned, and said, "Not necessarily. Since he left his motives, it gives us a new direction. In this direction, there may still be a chance. ”

"In what direction?" Wang Bing asked puzzled.

"The letter of repentance left by Jiang Weimin is the direction." Qiu Yu said, flipped out a few photos, which were full of dense text. At the beginning of the first sheet, there are three large black letters: Book of Repentance.

"What's written on it?" Wang Bing asked curiously.