Mu Zihan carefully arranged the confetti and glass fragments on the table one by one, and continued: "Siyuan, do you remember what I said before, 'When I smashed the glass window, it didn't feel like the glass was smashed directly by me, but more like it was broken by myself after bearing my strength, and I broke off the window frame and fell to the ground'? ”

After nodding at me, he continued, "Actually, that's exactly what happened. Pen "Fun" Pavilion www.biquge.info These are the things I found when I checked the scene of the crime for the second time. Facial tissues, when single, are very thin and easy to break. However, if it is rolled into such a slender shape, it will become relatively strong, can withstand a certain amount of pulling force, and has a certain thickness. If you look closely at these pieces of broken glass, you can see that there are obvious traces of scotch tape on them. I don't know what you think of all of the above? ”

"Paper towels and glass fragments pasted with transparent glue, it can only be said that the hygiene of the data room is taken care of by Chen Bo himself, so it is not very detailed." To be honest, this was really the first thought that flashed through my mind after listening to Mu Zihan's words, and I didn't mean to make trouble. However, after I finished speaking, Mu Zihan directly glanced at me angrily and said, "Siyuan, at this time, don't be kidding, do you think I'm the kind of person who is bored to pick up garbage and play?" ”

"Hehe, then don't sell it, Detective Muta." I said with an awkward smile.

Mu Zihan snorted, turned his head to look at Chen Weihong, and said, "Weihong, didn't I ask you before, who in this family has ever been engaged in glass-related work?" In order to find out who is doing this glass. At that time, your answer was Liu Chiming. My aunt also told me that four days ago, the window glass of this data room had to be replaced with the current ordinary glass because it had been deliberately damaged. That's right. ”

After Chen Weihong and Aunt Chen nodded one after another, Mu Zihan spoke again: "Therefore, I can now say for sure that the person who quietly sneaked up to the fourth floor while Uncle Chen and Aunt Chen were not at home and maliciously destroyed the special glass of the windows of the original data room was also Liu Chiming, in order to let Uncle Chen replace the window glass of the data room with ordinary glass. And all this is more to prepare for today's murderous plan. ”

"As far as I can deduce, the whole process is like this. In the first step, he first maliciously destroyed the window glass specially made in the original data room, and asked Chen Bo to use ordinary glass for the time being. Then, this afternoon, after we left Uncle Chen's study, we threatened to know the secrets hidden in Uncle Chen's data room, and forced Uncle Chen to enter the data room with him for a secret talk. Then, if he provoked Uncle Chen with words such as taking away the confidential information that Uncle Chen had hidden in this data room, deliberately disturbing Uncle Chen's mind, and then taking advantage of his panic to suddenly attack, it would be easy to succeed, after all, he had a calculating intention or not. ”

Mu Zihan pulled me up as he spoke, walked to the carpet in the middle of the reception room, and asked me to cooperate with this role as Uncle Chen, and started to demonstrate the action, while continuing to explain: "At that time, he took advantage of Uncle Chen's inattention, and put the rope sleeve that had already been tied into Uncle Chen's neck from behind, and did not give Uncle Chen a chance to react, and immediately hugged him on his back and fell to the ground. Since Liu Chiming is behind Uncle Chen, as long as he properly controls the distance, then after the two fall down together, his feet can immediately ride on Uncle Chen's shoulders, so as to suppress Uncle Chen's hands and body, so that Uncle Chen can't break free immediately. Immediately after that, he only had to pull the rope behind him, and the movable knot would also clasp Chen Bo's neck and tie Chen Bo. Moreover, the strangulation marks caused by this are the same as hanging. ”

After the demonstration, Mu Zihan finally let go of me, stood up and continued: "Then, he used the fingerprints of Uncle Chen, who had been strangled by him, to unlock the screen lock of Uncle Chen's mobile phone and set the phone to vibrate mode for incoming calls. Then he used a chair to match the books on the shelves, supported Chen Bo's body, and hung him on the chandelier on the ceiling of the reference room, but in order to complete the alibi later, he would not be strangled to death immediately. After all these preparations, he woke up Uncle Chen, and at the same time removed the chair that had been supporting Uncle Chen's body, and arranged the timing mechanism I had mentioned earlier. Of course, during this period, he never completely loosened the rope that had tightened Chen Bo's neck, but just relaxed it a little, allowing Chen Bo to barely breathe, and the rope remained in its original position. This is why the wound on Chen Bo's neck looks like it was caused by an injury. ”

Mu Zihan paused when he said this, sighed, and said with a very sorry look: "Hey, it seems that Uncle Chen is still old after all, although he was good when he was young, but now he is not as good as before." And after retiring from police work, he has been neglecting to exercise, so this will give people like Liu Chiming a chance. It can only be said that Uncle Chen is a hero in the twilight of his life, and he has suffered this kind of villain's calculation. ”

After being silent for a while, Mu Zihan continued: "After setting these up, he began to arrange the secret room. His original plan was to use his previous experience working in a glass factory to remove the window glass facing the aisle from the inside of the data room. Then leave the data room, and then simply put the glass back on the window frame, and the secret room will become seamless. ”

"Interestingly, though, the window was designed to fit the glass into the frame from the inside of the room, and if he climbed out of the window, he wouldn't be able to put the glass back in there." Mu Zihan said with a mocking smile, but then his face returned to solemnity: "However, he has studied this window for a long time, and he has already prepared, the reason why he wants to design Uncle Chen to use ordinary glass for the time being is also the main reason, because special glass is not so easy to cut." ”

"Cutting glass? Could it be ......" Uncle Wang, who is more experienced, seems to have thought of the key to it.

That's right, he used a glass knife to cut the glass in a circle. In fact, the working principle of the glass knife is very simple, that is, there is a diamond on the tip of the glass knife. The diamond is ground to a large but sharp edge. As soon as the glass knife cuts hard across the surface of the glass, the blade leaves a groove in the glass with a sharp bottom. Then, as long as this surface of the glass groove is tensile, because the bottom of the groove is very sharp, there is a large stress concentration, then a brittle material like glass can easily crack along this groove. As long as you master this know-how, the glass knife is also very convenient to operate. What's more, Liu Chiming used to work in a glass factory, which made it even more difficult for him. Mu Zihan nodded and said, "He calculated the size first, and then cut off a thin edge of the glass, so that the piece of glass, which is smaller than the original size, can be installed into the window frame from the outside." ”

"However, if the size is smaller than the original, even if you install it, it will be very unstable. After all, the glass window is quite large, if it is not stuck with the window frames on four sides, only one or two frames, with the weight of the glass, it should easily fall by itself. I was puzzled.

"That's why he took advantage of this card on the other two sides." Saying that, Mu Zihan picked up the tissue that was tightly rolled into a slender shape and said, "I think, the next steps should be like this." He first applied a piece of scotch tape to the corner of the cut glass that could be pulled in the middle, and attached the roll of paper towel to one corner of the glass. Then after cleaning up the fingerprints at the scene and restoring the crime scene to its original state, then bring the cut excess glass from the window to the aisle, and finally, as long as the glass that has been small is already a circle, first like this, while jamming it with a paper towel roll, while pulling the transparent glue, and reinstalling the window frame. As he spoke, Mu Zihan also gestured to imitate the way he thought Liu Chiming was pretending to be glass, and we finally fully understood the entire process of Chen Bo's murder. Although, up to now, everything is still just Mu Zihan's inference, I think the truth should be like this.

(To be continued)