Chapter 1175 IQ Takes over Again (Please Vote and Subscribe!!!)
In the courtyard late at night, Kidd turned on a flashlight and curiously observed the silver-black stone that Sakaki picked out from the charcoal stove. He couldn't recognize it for a while.
"It looks like some kind of metal."
"This is the second most abundant element in the earth's crust, atomic number 14, a metalloid in the third period of the table of elements, silicon."
Sakaki said with cold eyes.
"silicon"
Kidd frowned and thought hard, then his body suddenly shook and he came to his senses:
"Is it silica? The prisoner actually used silica to produce carbon monoxide?!"
"That's right."
Sakaki nodded:
"Silica is a naturally occurring white crystal that is widely found in nature. Natural silica is also called silica. It is mainly used to make glass, pottery and other items. Pure silica crystals are also often used to make optics. The instrument, in general, is not uncommon and is very simple to obtain.”
"When carbon and silicon dioxide react at high temperatures, silicon and carbon monoxide will be produced. This is the source of the high concentration of carbon monoxide in the house. The prisoner is obviously proficient in basic chemistry."
"But."
Kidd said doubtfully:
"Although silica and carbon can react, the temperature required is very high, between 600°C and 800°C. It seems that a closed oxygen-free space is required!"
"Are you so bad at chemistry? A closed oxygen-free space is used in industry to produce emery. It can also produce carbon monoxide, but in an aerobic environment, the reaction produces silicon element and carbon monoxide!"
Rolling his eyes, Sakaki explained:
"As for the temperature issue you mentioned, anyone with some common sense knows that in an open fire, the temperature of carbon can reach 700°C, and the semi-closed bellows furnace used by blacksmiths can reach 900-1000°C! In ancient times, it was When it comes to making steel with charcoal, 1000°C is needed to melt the pig iron! That’s enough to melt the silica!”
"My major is not chemistry"
After muttering something, Kidd said again:
"I didn't expect that the prisoner would use this method to purify carbon monoxide. He couldn't have imagined this invisible way of killing!"
"Not only that, but he knows how central air conditioning works."
Sakaki said quietly:
"The ducts of most central air conditioners are actually not interconnected, and it is impossible to draw air from the outside. Generally, the air is circulated internally and heated or cooled through the indoor unit."
"The central air conditioner used by the Ogawa family is equipped with a fresh air system. This system connects the pipes in each room to achieve the effect of purifying the air. I was careless. In the case of insufficient information, I did not react in time. ."
Sakaki was a little annoyed. With his ability, he shouldn't have made such a stupid mistake. He didn't even think of the air circulation system until he saw the air conditioning controller on the wall.
If he had put more thought into the central air conditioner, he might have been able to avoid this tragedy!
Carrying the charcoal stove as a crime tool, Sakaki returned to the house with Kidd and took off his mask.
After such a long period of ventilation, the residual amount of carbon monoxide in the house is no longer enough to cause poisoning, so you can feel relieved for the time being.
"Based on this situation, the chef and the others are the most likely suspects."
Kidd sat down and said:
"They had such easy access to coal that it would have been so easy to carry out this assassination, so effortless."
"As long as the concentration of carbon monoxide in the air reaches 1%, it can cause death, so it doesn't take much time."
Sakaki muttered:
"But based on this alone, it would be a bit of an assertion to say that the chef is a prisoner."
Suddenly, a harsh siren sounded outside the house, accompanied by red and blue flashing fluorescence. Sakaki and Kidd raised their heads at the same time, with a trace of surprise in their eyes, and asked in unison:
"Did you call the police?"
"."
Neither of them called the police, but the police arrived at the scene, which was really beyond their expectation.
Is it possible that the police in Qunma County have such a keen sense of smell that they can predict things before they happen?
Walking out of the house, Sakaki saw several figures getting out of the police car. The first one had a middle-parted hair, and his eyes were full of wisdom. He took a look.
You know he is very smart.
The kind that involves gambling.
Gunma Prefecture Police Department - Yamamura fuck!
"It's over."
Sakaki covered his face and groaned:
"It turns out to be this guy"
Kidd also had a desperate expression, obviously he had seen Yamamura Cao's strength.
"Before you came, didn't we solve a murder case in Fujimi Village?"
Kidd looked up at the sky and said with a look of despair:
"Originally, that case could have been solved quickly, but with Yamamura Cao's full help, it was delayed until the middle of the night. We still had to find time to explain the inside story to him."
At this moment, Yamamura Cao strode forward under the light of the police car's headlights, first showed his ID, and then asked:
"We received a report that a deliberate murder occurred here. Are you two the criminals?"
"."
"Police Department, Police Department, how could the prisoner stay where he is and wait for the police to arrest him?"
Behind him, a police officer with a high IQ whispered:
"They should be survivors at the crime scene!"
"Oh, yes, yes."
Yamamura patted his head and laughed innocently:
"Where is the prisoner?"
Sakaki and Kidd looked at each other, not to mention how desperate they were.
"Police Department, Police Department, if the prisoner is caught, why do you need us to come here?"
"That makes sense. Why are you still standing there? Hurry up and conduct a site survey!"
"Yes!"
Under Yamamura So's order, the Gunma County police officers quickly set out and began to conduct a detailed investigation and evidence collection around the Ogawa family courtyard. They soon found the charcoal stove in the room that had not yet been extinguished.
After verifying the fingerprints on the charcoal stove
"Inspector, we found clues about the suspect! After comparison, we found that"
The surveillance police officer came forward and whispered a few words in Yamamura So's ear.
"Yeah, yeah, yeah."
Yamamura So nodded repeatedly, then looked at Sakaki Makoto, frowned, and asked:
"What else do you have to say?"
"."
From beginning to end, when the Gunma County police investigated the scene, Sakaki Makoto and Kidd did not say a word and watched coldly.
There was no other meaning, just wanted to see.
How stupid can people be.
"If you don't say anything, it's equivalent to consent. Arrest! Call it a day!"
The police officer took out handcuffs and stepped forward, but was glared back by Makoto Sakaki.
"What, do you still want to arrest me?!"
Yamamura Cao took a step back, his eyes alert:
"I tell you, if you plead guilty now, I can count it as your surrender!"
"What a joke, if he is the criminal, would he wait here for you to catch him?"
Next to him, Kidd defended Makoto Sakaki:
"The real criminal is lying in the hospital!"
"Hahaha"
Yamamura Cao and the surrounding police officers laughed heartily, as if they heard a joke:
"Please don't insult my IQ, I won't be fooled by such lies."
"Fuck, where do you get the IQ to insult!!!"