Liu Manman was still stunned, and she said confusedly: "Yes, obsessive-compulsive disorder, so what?"
Cheng Yu explained with a smile: "Look at this living room, everything in the room is in its original position, exactly. The sofa you are sitting on, the pillow on it must be in the middle of each grid. So, although
Bai Xiaowen has slept on this bed, but as soon as she gets up, her obsessive-compulsive disorder will force her to restore all the traces on the bed. She will never leave such traces that let people know that this bed has been used.
.”
"So, the bed was not made by Little Green Tea, but by the murderer?"
Cheng Yu nodded and said, "It must be. Therefore, Bai Xiaowen did not die on the ground, but on the bed. The clothes on her body may have been worn like this all the time, or maybe the murderer took advantage of her unconsciousness to
He helped her put it on. In short, she was lying on the bed at the time. The murderer first put a needle in her leg, pretending that someone had injected her with a loss of virginity solution or some other drug, and then, with a bath towel
He covered her head or just her neck, then reached in and cut her carotid artery, and then removed her from the bed while the bath towel was almost soaked with blood but not contaminated with blood.
Push it down. That's why Bai Xiaowen is lying on the ground, and the position of his hands and feet is a bit strange. At the same time, during the process of pushing down, the bath towel is pressed under the body by the corpse. All of this is
The murderer designed it. In other words, the position of the bath towel was intentional by the murderer, and the position of the bath towel was also intentional by the murderer. It was just that the pressing was so tight that I didn't notice the existence of a bath towel until I turned over the body.
This should not be so well designed. But because of this, we mistakenly thought that the bath towel was stuffed under Bai Xiaowen by the murderer."
Liu Manman was stunned when she heard this, and she asked doubtfully: "Then why did the murderer design it like this?"
Cheng Yu couldn't help but nodded slightly, and said with a hint of satisfaction: "Of course it's to cover up the marks on the floor."
"Marks on the floor?" Liu Manman was like a parrot at the moment, simply repeating Cheng Yu's words.
"Although I don't know what kind of marks they are, I believe that there must be some marks on the floor that may reveal his murderous methods. Therefore, the best way is to cover those marks with as many things as possible. So,
Blood, blood-soaked bath towels, corpses. In this way, no matter what traces there are on the crimson floor, we will only think that they are caused by blood, or caused by the blood-soaked bath towel being pressed on it for too long.
Don’t even check to see if there’s anything weird about that floor.”
Liu Manman finally understood. She immediately rushed to the bathroom and brought another bath towel, a clean bath towel.
"Mob that floor quickly. There must be clues."
Cheng Yu took the bath towel thrown by Liu Manman and wiped it back and forth on the floor where Bai Xiaowen's body was originally pressed.
When the half-dried plasma on top was wiped clean, Cheng Yu and Liu Manman both saw what was wrong with that floor.
Although there was nothing wrong at first glance, the two of them looked very carefully now, so they could still see that there were two different colors on the floor.
The color of the entire floor is of course balanced, but the wood surface of two floors has a trace that looks like tear stains.
To put it simply, on top of a patch of red, some patches appear darker or lighter in color.
But whether it is deeper or lighter cannot be confirmed at this moment, because after being soaked in a large amount of blood for eight or nine hours, the overall color of those plaques has changed greatly. Now it seems that the color of those plaques
It's darker than the wood floor, but before it was soaked in blood, it could have been a lighter patch or a darker patch.
But regardless, the plaques are quite obvious.
Cheng Yu lay down on the floor, twitching the tip of his nose slightly. He nodded slightly and whispered: "Sister Manman, come and smell it too. It seems that there is a different smell on those patches."
Liu Manman followed the words and walked over and knelt on the floor. He lowered his body and smelled the scent of the plaques.
"Well, there is a taste... like banana water. Is it the ingredient added to the incense? Because banana water has a volatile effect?"
Cheng Yu smiled, nodded vigorously, and said: "Now, everything is explained. Why is the corpse lying on the ground, why is the towel pressed under the body, and why is the posture of the corpse so weird... because
The incense that the murderer put in, in addition to its volatile effect, may also have a certain corrosive effect. Therefore, the murderer must know that there will be some traces of corrosion on the floor here. Of course, this level of corrosion, even
It may not make human skin feel stinging, but the paint on the surface of the floor... Sorry, it's not the incense that has a corrosive effect, it's just banana water. Because banana water can dissolve paint, it will remain on the floor.
Even if the content is very low, if it is not covered up, this floor will definitely attract a lot of people's attention, and the murderer will be easily noticed if he uses incense to kill."
Liu Manman also became energetic at this moment. She said: "There is only one person who has the opportunity to release the incense. Therefore, once someone discovers the method of committing a crime, the only person who will be listed as a suspect is the murderer himself."
.So, she had to cover up the traces she left, so she came up with this method of using corpses to cover up the traces on the floor. However, I still don’t understand, if it was just to cover these plaques with blood.
, she just dragged the little green tea to the ground, cut her carotid artery right here, and let the blood flow all over the floor. Why let the blood soak the bath towel and then cover the floor with the bath towel? "
Cheng Yu said: "Because of the splash, if you don't cover your neck, once the artery is cut, blood will spray all over the room, and the murderer will be stained with a lot of blood. And the blood will solidify easily if left directly on the floor.
After we find the body, even if we drag the body and turn it over, it is possible to remove the coagulated blood clots and find traces on the floor. After soaking the blood with a bath towel, we can use the body to press the bath towel until it covers the floor surface.
, can more effectively prevent the patches on the floor from being seen by us. Obviously the murderer's strategy was successful, if I hadn't discovered the suspicion that the bed had not been made up, and realized that Bai Xiaowen was pushed from the bed.
on the floor, then the murderer's plan may have succeeded."
"This Su Xi really worked hard!" Liu Manman sighed with emotion.
Cheng Yu didn't bother to correct her. In fact, he was still not 100% sure that Su Xi was the murderer of Bai Xiaowen. However, Cheng Yu also knew that no one could easily change what Liu Manman believed, so Cheng Yu was not interested in going.
I argued with her.
"Next, as long as we solve the problem of how to lock the crescent lock, everything will be closed." Cheng Yu stood up. The questions about the murder method had basically been deduced, and he was about to start the last question.
.
Liu Manman was stunned when she heard this. She said, "You still don't know how Su Xi locked the crescent lock after leaving this room?"
Cheng Yu nodded and said, "I never said that I had solved this problem."
Liu Manman was speechless. Previously, Cheng Yu had categorically said that the murderer would not lock the crescent lock immediately after killing the person, but would have to wait until dawn before doing this step. Would this prevent people from misunderstanding that he had solved everything? But
Now he is doing well, actually saying that he doesn't understand this problem yet.
"Don't be too anxious. This problem shouldn't be that difficult to understand. Moreover, after grasping the core of the problem, the murderer basically has nowhere to hide, so the problem of the secret room is no longer a problem."
Seeing that Cheng Yu was very confident, Liu Manman couldn't figure it out anyway, so he could only wait and see how Cheng Yu would solve the problem of locking the crescent lock.
In Cheng Yu's view, the reason why this problem is not difficult to solve is very simple. After the terrace door is closed, it is tightly sealed, so there is no way to solve the problem from the door side. Since the problem cannot be solved from the door side, then the only solution is
Go down another road, that is the window.
Moreover, judging from Bai Xiaowen's severe obsessive-compulsive disorder, she would never allow the window in her bedroom to remain open, and that window could not just play a role in ventilation and cooling, so the problem of the crescent lock must be
It was solved from the window.
But now, there are two problems.
First, when Cheng Yu and others entered the scene for the first time, the bedroom door was closed and Cheng Yu opened it himself. Therefore, Cheng Yu knew very well that the bedroom door was definitely locked at that time.
of customs.
Of course, there is no back lock, but the spring bolt is locked in the keyhole. The door will not be opened unless someone presses the door handle.
The bedroom door is different from the guest room door. It does not have auxiliary devices such as springs or hydraulic pressure. The door can be opened at any angle. In other words, if the door is open, it is absolutely impossible without external help.
Close the door.
If you want to close the crescent lock through the bedroom window, the bedroom door must be open.
The second question is how to recycle the used locking tools after locking the crescent lock.
The way to recover it must be through that window, but once the locking tool is recovered, we are back to the first problem, how to close the bedroom door.
Theoretically, you can close the door with a pole of sufficient length. But the problem is that Cheng Yu knows very well that there is no such tool in this villa. In other words, in this villa, except for the old man,
No one outside London has access to such a tool.
As long as these two problems are solved, the problem of the secret room will be completely solved.
Cheng Yu carefully inspected the crescent lock, but he didn't get anything from it.
Cheng Yu couldn't find any useful information on the windows or window frames.
But in the end, Cheng Yu saw something unusual on the bedroom door handle...
That thing can really only be described as a thread, because it is an extremely thin thread, as if it is a thin thread dropped from some kind of fabric. In theory, anyone who opens the door will have
Maybe a fiber from the clothes fell on the door handle, so this can't be called an important discovery.
But Cheng Yu always felt that perhaps to solve this mystery, everything would fall on this extremely fine thread.
After discovering the existence of silk, Cheng Yu looked more carefully at the door handle. Finally, he found that there were faint traces of friction on the door handle.