In Conan, people have a brain option system.

Chapter 94 A reasonable explanation for all this
Megure Juzo sent police officers to investigate the cameras in the film festival area.

At the same time, other police officers were sent to ask the organizers of the film festival for Ohkawa Takao's phone number.

In Japan, in principle, police need a search warrant when conducting a search or requesting personal information.

However, due to the urgency of the situation this time, the police can also conduct a certain degree of investigation without a search warrant in accordance with relevant laws.

however.

After Megure Juzo called Ohkawa Takao several times, no one answered.

"Sure enough, this Ohkawa Takao is very suspicious."

Megure Juzo gave up calling and put the phone back in his pocket.

"Speaking of which, Sister Sera, what is the possible explanation you just mentioned? And why do you suspect Ohkawa Takao?"

Megure Jusan asked.

"First, there is no doubt that the murderer attacked the victim's arm in order to cover something."

"But as Inspector Megure said, even if the murderer is close to the victim, it is difficult to hit the victim's arm in a specific position and then hit the victim's head without attracting other people's attention."

"My initial thought was that as long as the deceased was not defensive, the murderer could have let the deceased extend his arm first."

"Then at this time, he suddenly pulled out a gun and attacked the deceased's arm, and then attacked the deceased's forehead."

"But this method is too difficult to implement. Without professional training, it would be difficult to do it."

Upon hearing this, Megure Juzo nodded, indicating that he agreed with Sera Masumi's reasoning.

"And according to the boy's reminder, if the deceased has been injected with sedatives or anesthetics, then failure is basically impossible, and there is no need to worry about shouting to attract attention."

"At the same time, if we consider this situation, the reason why the murderer attacked Sogabe Ryo's arm and Soma Miho's elbow was to cover the eye of the needle."

"If they can be killed with one shot, why bother injecting them with anesthetics? Isn't that redundant?"

Megure Jusan was a little confused.

"It's possible that they were injected more than once."

Sera Masumi said.

"More than once, what does that mean?!"

"For example, morphine made from pure alkaloids extracted from opium, or heroin made from refined morphine, in addition to its sedative effect, is also highly addictive."

"It is assumed that Sogabe Ryo and Soma Miho had previously abused opioids."

"When they become addicted to a certain extent, the effects of ordinary medications are too slow for them to be satisfied, so they will choose intravenous injection."

"Although the needle hole of a common intravenous injection will disappear quickly within 1-2 days at the fastest, the relevant components can still be detected in the body in as short as a week, depending on the different metabolic rates."

"Yesterday, Tsunekazu Kosaka died in an accident and was taken away by the Metropolitan Police Department for an autopsy."

"If Tsunekazu Kosaka had abused drugs, it would have been discovered when the autopsy reached the blood test stage."

"This will bring suspicion upon Tsunesaki Kosaka and everyone around him."

Megure Jusan was shocked by Sera Masumi's overly bold guess.

If drugs are involved in this shooting, the severity of the situation will be even higher.

"What does Tsunekazu Kousaka's drug abuse have to do with Sogabe Ryo and Soma Miho?"

"The three of them are good friends. If Tsunekazu Kosaka is a drug abuser, I assume the other two are the same."

"Because after Tsunekazu Kosaka was taken away by the Metropolitan Police Department for an autopsy, it was a foregone conclusion that drugs were found in his body."

"The murderer most likely killed the other two people who also abused drugs in order to prevent them from exposing themselves!"

Megure Jusan: “!!!”

Megure Juzo and several detectives who were currently in Soma Miho's personal lounge all showed shocked expressions after hearing Sera Masumi's reasoning.

"Besides, as I said, if this is the true situation, then all the doubts in this case can be explained."

"1. The reason for Kosaka Tsunekazu's sudden death."

"Because he has sleep apnea, he has to use a ventilator when he sleeps at night."

"All opioids have a depressant effect on the central respiratory system." "The combination of these two conditions will create huge risks."

"This also explains why Tsunekazu Kosaka died suddenly."

"Second, why did the two people who died today die in a different way than Tsunekazu Kosaka?"

"Because the murderer who caused the deaths of Sogabe Ryo and Soma Miho is a different person from the murderer who caused the death of Kousaka Tsunekazu yesterday."

"As for the reason..."

After hearing what Sera Masumi said, Megure Juzo and the police officers at the scene also focused their attention.

This is also what they are most curious about.

However, they did not hear what Sera Masumi continued to say.

Instead, he saw Sera Masumi looking at Megure Jusan and asked:
"Excuse me, Officer Megure, I want to ask you something."

"Will the bodies of Sogabe Ryo and Soma Miho be subjected to blood tests after they are brought back to the Metropolitan Police Department?"

"The usual forensic autopsies will be performed, but they all died of very clear gunshot wounds, so no toxicology analysis will be performed."

Megure Jusan answered.

"What's wrong?"

However, just as he asked the question, his eyes suddenly widened and he realized something.

“Could it be…?!”

"It seems that Officer Megure has also figured it out."

Sera Masamune smiled.

"That's right, because if Sogabe Ryo and Soma Miho died from gunshot wounds, the Metropolitan Police Department would not conduct blood tests on them."

"That is, the fact that they have abused drugs in the past will not be exposed!"

Many police officers at the scene couldn't help swallowing when they heard this.

Even the detective who had participated in many cases couldn't help but feel a chill down his spine after hearing the murderer's motive from Sera Masumi.

It was obvious that the man was not the murderer at first.

He just realized that there was a possibility of him being exposed, so he killed everyone who might expose himself.

Such a vicious person is really scary.

"If my speculation above is correct, the murderer should be someone who has access to opioids."

"Among the people I know so far who are also acquainted with Tsunekazu Kosaka, the one who has this ability is Takao Ohkawa, who runs a plastic surgery hospital."

"Of course, the premise of all my reasoning is that Tsunekazu Kosaka has abused drugs."

"So the results of the forensic autopsy are particularly important."

"But seeing that Mr. Ohkawa is now out of contact, I feel that his suspicion is increasing."

After hearing what Sera Masumi said, Megure Jusan also looked solemn.

He took out his cell phone and dialed.

"My name is Megure. Tell the Institute to expedite the toxicology analysis on Tsunekazu Kosaka. I want to know the results of the blood test as soon as possible, the sooner the better!"

Megure Juzo hung up the phone and was about to continue talking to Sera Masumi.

Then I saw Sera Masumi also answered the phone.

"Hello? Xiaolan, what's wrong?"

"Eh?! What did you say?!"

Sera Masumi's sudden increase in voice and shocked expression attracted the attention of the people around him.

Conan raised his head slightly and squinted his eyes at Sera Masumi.

Then I heard Sera Masumi say:
"Lan said that the artist Akikawa accepted the invitation from Ohkawa Takao and went to Yoshitoki Horita's personal exhibition hall alone!"

(End of this chapter)