Coroner Coroner

Kudo Shinichi and Mao Lilan looked at each other, silently exchanging opinions:

Obviously, the deceased died of poisoning.

Moreover, the poison in the deceased was the poison the two of them were most familiar with—potassium cyanide.

Potassium cyanide can inhibit respiratory enzymes, cause intracellular suffocation, and quickly paralyze the respiratory center due to hypoxia.

Taking a sufficient amount of potassium cyanide orally will cause the poisoned person to fall to the ground instantly, convulse for a moment and die, which is called "death by electric shock".

In reality, although potassium cyanide is widely used in electroplating, metallurgy, etching, lithography and other industries, it is still difficult for ordinary people to obtain as a specially controlled hazardous chemical.

But, in this world...

If you don't use some potassium cyanide for poisoning, the murderer will be ashamed to hang out in the circle of murderers.

So Kudo Shinichi and Mao Lilan are very familiar with this poison.

They quickly determined the cause of death of the deceased:

"It was poisoned by potassium cyanide, and it was taken orally."

"The deceased was still holding a paper drink cup when he fell to the ground."

"This poison is probably in the Coke he drank."

"but…"

Both Kudo Shinichi and Mao Lilan noticed something was wrong:

The coke in the drink glass has been drunk.

Potassium cyanide is highly toxic and can cause severe symptoms such as throat fever, stomach discomfort, dizziness, and tinnitus immediately after oral administration.

If the amount eaten at one time is large enough, the victim will fall to the ground and die in an instant.

Therefore, if the poison was poured into a drink cup, the deceased should have noticed something was wrong when he took the first sip of the drink.

How could he finish his drink?

Mao Lilan frowned, unable to think of an answer for a moment.

And Kudo Shinichi looked thoughtfully at the few ice cubes that had melted in the drink glass, and thought for a while in silence.

Then, he raised his head and asked the three spectators who were sitting next to the deceased and were watched by Mao Lilan immediately after the incident:

"Are you all acquaintances of the deceased?"

"Who is the deceased, what did he do before he died, can you tell us in detail?"

"Uh... yes, yes."

The three hesitated for a while, and finally, one of the young ladies stood up:

"My name is Hongshang Wuyi, and I'm a staff member of Mihua Hospital."

She introduced herself first, then pointed to the man and woman standing beside her and said:

"These two are Noda Yumemi and Mitani Yota."

"They are also employees of Mihua Hospital."

After Hongshang Wuyi finished introducing herself and her companions, she finally looked at the corpse on the ground with a complicated expression:

"The person who died... was Kamata Kohei."

"He's a doctor at Mihua Hospital."

"The four of us all graduated from Didan High School, and we all work in the same place, so we go to watch the show together every year."

Then, she introduced the circumstances of the incident in detail:

"We were all focused on watching the performance and didn't pay attention to what Mr. Kamata was doing beside us."

"I didn't expect that he would suddenly fall to the ground without warning."

"By the time we found out that the situation was wrong and tried to rescue him, he had already died."

"What about the Coke Mr. Kamata drank?"

Kudo Shinichi then asked:

"When did he get the Coke?"

"Who else touched a Coke before he got it?"

"Also, was the deceased Mr. Kamata the only one who ordered Coke, or did the four of you all order Coke?"

"This..." Hongshang Wuyi thought for a while and replied:

"I went alone to help buy the drinks for the four of us."

"Among them, Sangu ordered oolong tea, Noda ordered orange juice, and Kamata and I ordered iced coffee."

"Mr. Kamata ordered iced coffee?"

Kudo Shinichi interrupted the other party's narration with some concern:

"Then how could the drink in his hand turn into Coke?"

"It's because of me!"

A girl with glasses wearing Didan High School uniform walked over quietly.

"I'm in charge of the drink stand at the school festival venue."

"It is true that Kamata ordered iced coffee, but I changed it."

"Huh?" Everyone looked over curiously:

A female high school student, why did she change the drink of the deceased?

She quickly told everyone the answer:

The girl's name is Ayako Ninagawa, and she is the daughter of the director of Mihua Hospital.

The deceased Mr. Kamata worked in Mihua Hospital. Because he was young and promising, good-looking, and capable of working far beyond his peers, he was favored by the director of Mihua Hospital, Ninagawa, and made a marriage contract with the president's daughter, Ayako Ninagawa.

But Miss Ayako Ninagawa didn't want to marry a man 10 years older than herself, so she persuaded her parents to call off the marriage.

The relationship between Mr. Kamata and Ayako Ninagawa has been very tense recently because of the divorce.

He has been avoiding her.

He also deliberately avoided talking about the divorce.

Just before the school festival performance started, Mr. Kamata, the deceased, did not dare to buy drinks by himself because he saw Ayako Ninagawa selling drinks.

And Ayako Ninagawa, in order to force him to meet with her to discuss divorce, deliberately replaced the iced coffee he ordered with Coke when selling drinks.

The purpose is to let Mr. Kamata get the wrong drink and go to the drink stand to change it by himself.

But obviously, as a result, Mr. Kamata didn't change the drink for some reason.

He finished the Coke.

Then he was poisoned to death.

"I understand!"

Kudo Shinichi and Mao Lilan have not spoken yet.

Mori Kogoro, who was helping to maintain order at the scene, had a gleam of wisdom in his eyes:

"Mr. Kamata died by suicide!"

"Because I was ruthlessly abandoned by a girl who was 10 years younger than me, I was hit hard in my heart:"

"He has been avoiding Ms. Ninagawa, avoiding the matter of retiring the engagement - this behavior of burying his head in pretending to be an ostrich shows how fragile his heart is."

"So...Mr. Kamata chose to commit suicide in front of this girl who dumped her at the Teidan High School's school festival!"

"And Ayako Ninagawa happens to be the student in charge of selling drinks at the school festival."

"All the drinks sold will go through her hands first."

"Knowing this, Mr. Kamata intentionally put poison in the Coke he bought from Ms. Ninagawa, and committed suicide by taking poison in this way.'

"In this way, not only can he end his own life as he wished, but he can also place the suspicion of poisoning on Miss Ninagawa."

"And, because it was a suicide."

"So Mr. Putian can completely drink potassium cyanide after drinking almost."

"In this way, the question of 'the deceased died after drinking the poisonous drink' can be answered."

Mo Lilan Kogoro did some analysis, but he did it decently.

The motives and psychological state of the deceased were all speculated to be reasonable by him.

Even the biggest mystery of the case, "Why did the deceased die after drinking the poisonous cola", has been perfectly answered under his explanation.

but…

"dad…"

Mao Lilan dragged her father back with some helplessness:

"The judgment of suicide should not be so hasty."

"The Metropolitan Police Department has handled wrong cases several times before...Mr. Lin even got angry with the people in the search section because of this."

"Mr. Lin said that if you want to characterize a case as suicide, you must find enough evidence."

"For example..."

Mao Lilan paused slightly, and said seriously:

"A container for potassium cyanide."

"Potassium cyanide is easy to deliquesce in the air, and this highly toxic substance is also dangerous if it comes into direct contact with the skin."

"If the deceased died by suicide, the poison was taken from his body after he drank the Coke."

"Then he should have a container of potassium cyanide on him."

"But I did a simple search during the autopsy just now, and Mr. Kamata didn't have any suspicious containers on him."

"So, it is unlikely that he committed suicide."