In Conan, people have a brain option system.
Chapter 166: Pressing Forward
Chapter 166: Pressing Forward (22)
After hearing what Dr. Agasa said, both Matsutani Choichi and Motoki Mayumi suddenly showed extremely frightened expressions on their faces.
"Wait, what are you talking about?!"
"What do you mean by using bath additives to kill people? I don't understand at all!"
"I don't know Miss Yuanmu at all. You didn't listen to this person's nonsense and just believed it, did you?!"
Matsutani Choichi pointed at Akikawa Sousuke and spoke loudly to Dr. Agasa.
"Yes!"
"I don't even know this person, how could I possibly help him kill someone? Stop kidding me!"
"I just happened to step on a dead body when I was taking a bath this morning. You were all fooled by this artist!"
Mayumi Motoki also refuted loudly.
The Kanagawa prefectural police inspector came up to the two of them and spoke sternly:
"We found a leather suit used for stage plays in the room of the deceased, Kenji Furusawa, and detected a high concentration of hydrogen sulfide in it."
"According to Dr. Agasa's judgment, the murderer made hydrogen sulfide in the hood and then put the hood on Mr. Furusawa's head, thus killing Mr. Furusawa with a small amount of hydrogen sulfide gas."
"Mr. Gu Ze should have put the hood back into the actors' dressing room after the stage play ended yesterday, but the hood appeared in his room, which means the murderer brought it out to commit the crime."
"And as an actor in a stage play, Mr. Matsutani, you won't be suspected even if you enter the dressing room reserved for actors."
The police chief added.
"No, no, no! This Akikawa Sosuke is also an actor! Why do you only doubt me?"
It was obvious that Matsutani Jōichi could not accept the inspector's statement. He pointed at Akikawa Sousuke and asked loudly.
"Because among all the suspects, only Mr. Matsutani's room was found with bath additives."
"Dr. Agasa" spoke at this time and said to Matsutani Jōichi.
"The hood has been taken away by the police from the forensic department to test the corresponding ingredients inside."
"I think the ingredients of the bath additive you used, Mr. Matsutani, can be detected in it, right?"
"But even if that's the case, what does that mean? Couldn't it be that Akikawa Sosuke bought the bathing agent and threw it away after using it?"
"You are doubting me based on a bath spray alone. That's outrageous!"
It was obvious that Matsutani Jōichi could not accept what Dr. Agasa said, and he became more and more excited.
"This bath additive was made to recreate the open-air hot spring of Kosen-an. I'm afraid that among ten thousand buyers, there won't be one person like Mr. Matsutani who would use it in the room of Kosen-an."
It feels like a person who has traveled thousands of miles to be invited to a famous restaurant.
He could obviously sit in the restaurant and enjoy the most authentic food prepared by the chef for him for free.
But he refused the food prepared on the spot and chose to spend money to eat the semi-finished dishes sold in the restaurant for gift giving.
This kind of thing seems very unreasonable.
"Is it okay if I don't like taking a bath with others? Who said that if you stay in a hot spring hotel, you have to take an open-air hot spring?"
Matsutani Jōichi continued to refute.
"Mr. Matsutani, why, when the ingredients in the mask have not been tested yet, you have already assumed that the bath additive in the Kamen Ultraman mask is the bath additive you bought?"
Conan said coldly while holding the bow voice changer.
Matsutani Changyi was speechless for a moment when he heard this.
And Akikawa Sosuke also spoke at this time:
"I haven't purchased any bath additives, Mr. Matsutani."
"If you don't believe me, you can check the cameras in the souvenir shop."
Akikawa Sosuke pointed to the big sign posted at the entrance of the souvenir sales area: "There are surveillance cameras inside. Theft is illegal." In order to prevent people from stealing goods in the souvenir shop when there are many people, Kosenan
Therefore, cameras are installed in the souvenir sales area.
"Although I'm not sure what the bath additives have to do with murder, if you compare the surveillance video, you can confirm whether I also bought the bath additives."
Akikawa Sosuke said to Matsutani Jōichi with an innocent look.
"All signs indicate that it was you, Mr. Matsutani, who secretly took out the mask of Kamen Rider and used bath additives to make hydrogen sulfide gas to kill Mr. Furusawa."
"It was you, Mr. Matsutani, who had the bathing powder. It was also you, Mr. Matsutani, who could legitimately enter the actors' dressing room and take out the Kamen Rider mask."
"Mr. Matsutani, you perfectly meet the murderer's criteria."
"Mr. Matsutani, do you have anything else to say about this?"
Conan pressed on and continued to ask.
"How can I kill someone without using bath additives? I'm just an actor, I don't know anything about this kind of thing!"
"Furthermore, according to what you said, bath additives alone cannot produce hydrogen sulfide gas, right?"
"I don't have anything that can be used with bath additives to create hydrogen sulfide gas!"
Matsutani Choichi's remarks made Akikawa Sousuke realize something again.
"Sure enough, he also found the other acidic substance in the hot spring hotel."
'It is precisely because of this that Matsutani Jōichi is confident that what he has done will never be exposed.'
'The other reactant must be something readily available and not something that would arouse suspicion!'
Once we have determined that one of the reactants used to produce hydrogen sulfide is bath fluid, the remaining reactant is simple.
At least Akikawa Sosuke could think of at least four things that could be found in this hot spring hotel, which contained acidic ingredients and could react with the sulfide in the bath additive to produce hydrogen sulfide.
Among them, the easiest to obtain and the least likely to be suspected is the laundry detergent in the laundry room on every floor.
When a bath agent containing sulfide is mixed with a laundry detergent containing an acidic component, the sulfide will decompose to produce hydrogen sulfide gas.
It just so happened that there were no cameras in the corridors of the guest room area, so entering and leaving the laundry room would not be captured by the surveillance cameras at all.
Akikawa Sosuke's guess was confirmed the next second.
I only heard the little girl with brown short hair next to Conan whisper:
“It’s laundry detergent.”
"Mr. Matsutani, the other thing you used to react with the bath additive is the laundry detergent in the laundry room!"
After hearing what Haibara Ai said, Matsutani Changichi's expression became even uglier.
He still insisted on his statement, but his rebuttal seemed increasingly weak.
"I have no idea what you are talking about. Do you have any evidence that I did it?"
Suddenly, at this moment, the sound of an ambulance sounded.
Then several emergency personnel came in and carried out Kojima Genta, who had fainted due to hydrogen sulfide poisoning.
Then I heard the Kanagawa Prefecture police chief say in a deep voice:
"The child fell into a coma due to poisoning caused by the hydrogen sulfide left inside the Kamen Ultraman mask by the murderer."
"Although this was caused by the carelessness of that child, remember, the murderer who made the hydrogen sulfide in the hood is also responsible!"
After hearing what the inspector said, both Matsutani Choichi and Motoki Mayumi's faces became much uglier.
They really didn't expect that there were other people who were harmed by hydrogen sulfide.
The inspector looked at the two's reactions and felt that the time was almost right, so he turned to look at his subordinate police officer and whispered:
"Interrogate Mr. Matsutani and Ms. Motoki separately."
"In the prisoner's dilemma, I believe the two of them will identify each other."
(End of this chapter)
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