"Okay, this is better, it's like this, I went out to judge whether it was blood stains from the smell, and the blood stains smelled fishy, but the outside of the windowsill has been exposed to feng shui and sun, and I didn't smell the smell. Pen? Interesting? Pavilion wWw. ｂiquge。 info Then I carefully observed the shape of the red dots, and there were signs of divergence, which is also the typical difference between blood and red ink, understand? Shi Sir explained.

"So that's the case, I understand, the blood is thicker, and the dripping on the ground won't be too divergent, which is a characteristic, but the degree of divergence from the red dot doesn't seem to be completely certain, right?" I said again.

"You're ......!" Shi Sir was a little speechless, and even his slightly hoarse voice became a little sharp: "The degree also depends on experience, the more you have seen, the greater the certainty, I'm too lazy to talk nonsense with you, it's endless!" ”

"Okay, you have a point," I quickly stopped, he said well, some things are empirical, experience may not be 100% accurate, but it can make people use the fastest time to make the best judgment, which I recognize.

Shi Sir looked at me, and showed a cunning appearance, I haven't seen it for a long time, he said: "You kid now knows how to study modestly, it seems that this period of experience is still beneficial." ”

I secretly said, in fact, I have always been quite modest, it's just that he hasn't found out, but I do want to learn more things, not only from the pressure of life and work, but also from the desire to improve myself, when I really face the predicament, I know that I have too many shortcomings.

Shi sir didn't give me a chance to think about it, and said, "Curious baby, we are also here in the classroom, tell me your opinion." ”

Curious baby? Did this Shi sir remember me again, didn't I just see Aunt Meihong present and say a few more words, but although Shi sir and Aunt Meihong didn't say a few words along the way, it may be because our subordinates are here, but I can also clearly feel that his mood is still quite good.

I replied, "What's your opinion?" Is it a conjecture about criminals? ”

"You can have any opinion, you came here before me, and you know more, let's talk about it, bold conjecture, everything is possible before the truth is revealed." Shi Sir rarely encouraged.

I nodded, followed Shi sir all the way, and unconsciously threw all the questions to him, lacking both my own initiative and some independent thinking.

I thought about it and said: "The first time the boots appeared and disappeared, it is easier to explain, that is, after the three children saw it, they left when they were looking for the aunt who guarded the door, the criminals can enter and exit from here, and it is easy to take the boots away, and the second time is more critical, after the three children found the boots, although they panicked, they only ran to the entrance of the building, and they met several teachers who came from the dormitory opposite, and at this time, Dou Yitong and Yu An walked like a classroom, after opening the classroom door, they did not find the boots, but the slide projector that was found, During this period, everyone's eyes never left the main entrance of the classroom, which means that it is impossible for the murderer to enter and exit through the main entrance and take away the boots.

Suppose that the suspicion of these two teachers who entered the classroom at the first time is ruled out, then the real criminal may have been taken from this windowsill, and the means he used here. On the other hand, if Dou Yitong and Yu An are criminals and must be accomplices, then they can also hide their boots when they enter the classroom for the first time, which makes what the students and teachers saw later also be valid. In general, Dou Yitong and Yu An are suspicious, otherwise the criminals should not be school personnel. ”

After I finished speaking, looking at Shi Sir's reaction expectantly, he shook his head slightly, looking not too satisfied, he said: "What you said also has some truth, but according to your reasoning, it has only narrowed down a certain range, and it is not accurate enough, and you missed a few very important details." ”

I was stunned, it seemed that Shi Sir had found a different way, and I immediately said: "I want to hear it in detail!" ”

"First of all, let me tell you about your contradictions, you also know the strangeness of the classroom door, this must have been done deliberately, but Dou Yitong has the key, isn't the action on the door lock redundant? How can this be explained? Well, we don't rule out the possibility of this being a fuss.

Also, compared to the first discovery of boots and the second discovery of boots, you directly ignore the first clue, you think, after the first discovery of boots, only five people know, that is, the three children and the gatekeeper, and one is the criminal himself, so why did he stay in place the next day after knowing that the classroom where he put his boots was found? And it's a few more to get worse, what is the intention? If you want to say that it foreshadows murder, then I think there is no one else except the foreshadowing of the gatekeeper who didn't see it with her own eyes that day and didn't believe it all the time!

Finally, the second time, the four boots turned into a slide projector, is this another superfluous move? Or is it what purpose is it? ”

After listening to Shi Sir's words, I actually had a kind of epiphany, bit by bit, it seemed that all the inconsequential clues gradually made the whole incident clear, and the seemingly abnormal actions and scenes must have a reasonable explanation.

If everything is reasonable, the first point raised by Shi sir is precisely to exclude the suspicion of Teacher Dou Yitong, and the second point, no wonder he sent the bombing to the aunt guarding the door at the beginning, and it turned out that the person targeted by the criminal was very likely to be this Aunt Li.

The third point, why the boots became a slide projector, I didn't understand it for a while, I got up and walked under the podium to take a look, the machine is relatively large, the volume should be equivalent to a small suitcase, I looked at it It's not weird, it's impossible to put boots or anything, I picked him up, put him on the podium, and tried to empathize, why did the criminal put him here?

Shi Sir, who had been following me, saw that I was a little stretched, and he reminded: "Su Wu, look at it from a different angle." ”

"A different angle?" I muttered, I see! I trotted to the door of the classroom and looked at the slide projector from here, and that's it! The podium was already high, and with the addition of the machine, it completely blocked my view, and the range that was blocked was the window sill opposite!

I hurriedly ran to the position of the windowsill again, and after a little look, I said excitedly to Shi sir: "I know!" The criminal must have hidden his boots on the platform outside the windowsill, but he didn't have time to lock the window, and he was afraid that the teacher who came in would find out, so he used a slide projector to block the viewing angle, so that people would not notice the unlocked glass window for a while.

In this case, the criminal is very likely to be the physical education teacher Yu An! He and Dou Yitong must have used some method to distract Dou Yitong in the middle of running to the classroom, and he went to the classroom first, he ran in alone first and quickly hid his boots, and then went out and pretended to enter the classroom with her to find out! ”

Shi Sir looked at me with a smile, but this expression didn't seem to be approving, more like a little helpless.

I couldn't wait to say again: "Shi sir, am I right about my analysis?" ”