"Team, don't worry, I haven't finished talking yet." Xin Chen glanced at Fang Ping, and his volume increased a few points, "Following this line of thought, what everyone is most confused about now is probably that if the rooftop is not the real place where Wu Xing fell, then where did he fall from." ”

Xin Chen gestured to Lin Fan, and the slide over there switched to the architectural drawing of the Wuxingjia community.

While Lin Fan adjusted the drawings to enlarge step by step, Xin Chen slowly opened his mouth, "Now these are the architectural drawings of Building 8 where Wuxing of Lukang Homeland is located, as you can see, its front elevation faintly presents a "convex" font, and the floor plan faintly presents a "concave" font, I believe that everyone has already traveled in their minds at this moment. ”

Xin Chen paused for a few seconds, and waited for Lin Fan to switch the on-site photos of Building 8 before he continued: "The roof of Building 8 is right in the center of this "concave" shape from a bird's eye view, and there are two outward terraces on both sides of the roof, but these two terraces are half a floor lower than the rooftop, and they are also about 1.5 meters high.

The two terraces cannot be accessed through the door on the staircase leading to the rooftop, but through the window opening at the corner of the staircase on the top floor.

Building 8 has three units, A, B and C, and Unit B, where Wu Xing is located, is located in the middle of the whole building, and the staircase leading to the highest roof is located in this unit, while the window opening to enter the terrace is located at the corner of the staircase on the top floor of the two units A and C. ”

"Ah, I see, the real place where Wu Xing fell is actually on the terrace where unit A or C can only go up!" Someone couldn't help but whisper when they heard this.

In the silent atmosphere, this sound was particularly prominent, and everyone immediately turned their eyes to it. I saw an extremely good-looking girl sitting at the back of the conference room, the dark police uniform suit with her shiny hair at the end reflected a perfect curved face, her long eyelashes trembled slightly, obviously slightly cramped for the sudden concentrated gaze, and the next second, an imperceptible pink quietly climbed up her fair and smooth neck.

"This is a new intern from the sub-bureau, I look very young, I can't have seen such a beautiful person." Some of the young officers muttered quietly.

"Well, it should be a newcomer, and it's so beautiful to come to a place where a group of gentlemen stay, I'm afraid it's the same as the one who is talking, all of them are here to play tickets."

"It should be, or else I can participate in this kind of meeting as soon as I come to the internship?" The older one shook his head.

Everyone was talking in a whisper, but Fang Ping noticed that Lin Fan, who was playing a slideshow on the other side, was rubbing his eyes vigorously, and the look in his eyes looking at the girl seemed unnatural.

"Ahem, cough, cough," Yang Hongbin on the rostrum quickly coughed a few times to direct everyone's attention back, "Xiao Chen, you continue." ”

"What this little comrade from the sub-bureau said just now is right," Xin Chen glanced at everyone, and then suddenly looked at Fang Ping, "The murderer just pushed Wu Xing down from the side of the terrace. ”

"Huh?" Everyone immediately retracted their thoughts about the girl just now, and stared at Xin Chen, obviously not wanting to miss her next analysis.

Xin Chen pointed to the slide, "This is a live photo of the terrace, the parapet is not even 0.25 meters, compared to the rooftop where the parapet is 1 meter high, this is an extremely convenient place to start."

The murderer used Wu Xing's footprints on the rooftop at noon to lock everyone's eyes on the highest rooftop, which just rotated the coordinate system of everyone's judgment on the displacement of Wu Xing's body.

The murderer pushed Wu Xing down on the terrace, along the edge of the "concave" shape, at the angle between the terrace and the roof, so that the X displacement distance of the corpse relative to the direction of the terrace disappeared perfectly when converted to the perspective of the rooftop. ”

No one spoke casually anymore, except for the humming of the electricity of the old slide projector.

"Let me briefly summarize my inference, at noon on the day of the crime, Wu Xing went to the rooftop to find me and Lin Fan in order to snatch the notebook, so he left footprints, because the loss of the notebook is a big matter Wu Xing notified his accomplices at the first time, and wanted to meet his accomplices to make the next step, but who knew that the meeting after night was the other party's bureau that was planning to kill him.

His accomplice, that is, the murderer, had already killed Wu Xing after learning what happened at noon, and after he was familiar with the environment of Wuxing's community, he had a plan, that is, to push Wu Xing down from the terrace and then pretend to be suicide from the rooftop.

His layout stemmed from several existing favorable conditions, first, Wu Xing had already left traces on the rooftop at noon, which was just enough to make the police mistakenly think that he had boarded the rooftop before he died; Second, the height of the rooftop parapet wall is very high, which just confirms that there is only the possibility of suicide; Thirdly, the concave structure of the building is exactly the coordinate system of the displacement on the X-axis of the corpse.

This plan can be considered perfect, the murderer himself does not need to hide or deliberately create some traces to mislead the police, even if he accidentally leaves traces, there can only be two units A and C outside the scope of the police investigation.

The deceased and the surrounding environment created powerful conditions for him, and all that remained was to forge a suicide note, and then trick the deceased to the corner between the balcony and the rooftop. ”

Everyone listened silently, and under Xin Chen's guidance, the scene when Wu Xing met the murderer seemed to be reappearing in front of everyone one by one.

In the conference room, a quiet that could easily be ignited suddenly fell, and everyone's thoughts were confused but gradually twisted into a rope, but the motives and speculations pressed on the chest were heavy enough to shake everyone here.

Bang bang, abrupt applause rang out, Fang Ping said with an expression that he couldn't see his emotions: "Xiao Chen, the police force has not come in vain in the past few months, the reasoning is indeed wonderful and logical, but these are all your subjective assumptions, right, do you have evidence?" ”

Everyone had already begun to believe Xin Chen's inference, but Fang Ping couldn't help but turn their heads and talk about it when he suddenly reminded him like this.

And after Fang Ping's sharp gaze swept over the venue again, he stared at Xin Chen and said slowly: "Xiao Chen, as your captain, I will teach you another lesson, that is, all our premise of judging cases must be based on evidence, and all reasoning without evidence, no matter how perfect the logic is, is just empty talk." ”

===================================================

PS: It would be nice if I could draw a schematic diagram, I don't have to bother to explain a lot, hehe, thank you again for your support.