That night, Lu Youyou sat at her desk in her room, scrolling through her phone. Her parents and sister were completely unaware that she had taken a day off from Ji University Building; otherwise, she wouldn't be so carefree with her phone.
No matter what Lu Youyou was browsing, the Explosion Case was always at the top of the headlines across various websites, indicating just how strong the public reaction had been and how many people were drawn to it. At least Lu Youyou had seen several videos of the Fire Department arriving at Ji University Building to extinguish the flames. Additionally, the Ancheng police department held a press conference to announce that they were conducting an urgent investigation.
An urgent investigation. As one of only two people privy to the details of today’s Explosion Case, Lu Youyou felt as if a heavy stone was pressing down on her heart. Knowing the truth but remaining silent—was that really the right thing to do? However, Xu Lie hadn’t harmed anyone, and she had promised to protect him.
Ugh, this is so annoying! The more news she scrolled through, the more agitated she became. She finally turned off her screen and buried her head in her arms, mumbling to herself, “That guy Xu Lie better not continue this. I’ve already warned him; if he keeps going, I won’t protect him anymore. Yes, that’s it! I can’t let him stray further down the wrong path.”
But if she were to protect him, she should keep it from Chen Chen for now; she couldn’t let her know that there was someone daring enough to blow up a building in their future.
As Lu Youyou wallowed in her thoughts, the Ancheng police department convened a large-scale discussion with several experts. Over a hundred members sat upright in the conference room, listening intently to the speaker.
“We should be grateful that the initial smoke detector at Ji University Building misled the staff into executing an emergency evacuation of the entire building; otherwise, today’s severe Explosion Case could have resulted in casualties,” the speaker stated. The staff below did not think it was an overreaction on the part of Ji University Building’s personnel; in a crisis like this, every life was invaluable.
As long as there was a possibility of casualties, taking precautions was absolutely justified. However, upon investigation, it turned out that the fire alarm had been triggered by several packs of tissues. The preliminary judgment indicated that it was an act of sabotage, though the specific motive remained unknown. Unfortunately, during the fire alarm incident, the surveillance cameras had malfunctioned and failed to capture any relevant footage; initial assessments pointed towards foul play.
“We have informed our psychology experts about this case. They have begun to establish a preliminary personality profile of the perpetrator and will present their findings shortly.”
“Now we invite our experts in Explosive Engineering to explain this explosion.” A middle-aged balding expert took the microphone and opened his presentation. “Ahem, as you may know, the explosion caused over seventy percent destruction of Ji University Building.”
According to experts, a building constructed with Reinforced Concrete Structure should be able to withstand typical explosive detonations. As they described the aftermath of the fire, the state of the building could not be classified as mere ruins; it was more accurately described as shattered remnants.
However, this time, the perpetrator is not simple. Our investigators discovered traces of Aluminothermic Reaction at the explosion site. This is a common chemical reaction that, once ignited, can instantly produce temperatures exceeding three thousand degrees Celsius, sufficient to melt parts of the building's support columns. It is often used in rail track connections and building demolitions.
Ultimately, the secondary explosion of the building was caused by the automatic sprinkler system. The mist from the water combined with the high temperatures from the aluminothermic reaction cleverly resulted in a steam explosion. The support columns were both melted and subjected to an explosion; under this dual reaction, they could no longer support the structure, leading to its collapse.
In summary, our conclusion is that the perpetrator possesses advanced knowledge of explosives and has an extensive understanding of the internal structure of Ji University Building, along with ample time to set up the explosives. You can narrow down the list of suspects based on these three aspects.
[This expert certainly looks professional.]
[I, Nan Er, am quite impressive! Forget everything else; I've never even heard of that steam explosion before.]
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