All in all, this is a case that should happen as a matter of course.

After all, there are too many conditions that trigger a murder, and they have basically reached the maximum value, which makes people complain.

But as expected, he couldn't stay idle with Conan around. He originally thought that he would be able to have a few days of peace after going with Conan to investigate the information about Hondou Eisuke's father. Unexpectedly, just one day later, a murder case happened seamlessly here.

But no matter how much we complain, we still have to continue the work that needs to be done.

"He died about an hour and a half ago, which means he died about an hour ago, including the time we arrived."

After examining the body, Ma Shengshi, who was accompanying the team, said as he gently fanned the deceased Zhukou Yiqi's mouth twice: "The taste of almonds in his mouth means he probably died of asphyxiation caused by a poison like cyanide."

"The word '又' is used very cleverly." Tang Ze on the side teased with a smile.

"That's why I'm so confused. Since I started working here, nine out of ten cases of poisoning have been caused by cyanide."

Ma Shengshi said this with a depressed look on his face: "I really don't know where those people got the cyanide poison from."

"Who knows?"

Tang Ze glanced at Conan and said immediately, "Maybe this is a type of poison that is commonly known to the public, so people would choose this type of poison to commit suicide or murder."

"In addition, there was coffee near the deceased's mouth. There is a high probability that the poison was placed in the coffee cup."

Ma Chengshi glanced at the coffee cup that had fallen to the ground and said, "Of course, to confirm anything more, we need to go to the scientific research institute for further testing."

"Well... all the doors and windows in the bedroom are locked except for the window Conan entered through."

Tang Ze looked around the surroundings and then looked at Zhukou Yigui's left hand and said, "There is a key in his palm. I'm afraid it is the key to this room. I wonder if there is a spare one?"

"Because Mr. Morokuchi hates others entering his room without his permission, we don't have a spare key." Miss Anabuki explained.

"Then give it a try."

Tang Ze took the key from Zhukou Yigui's hand, opened the door and tried it from the outside. Sure enough, it could be opened.

"Sure enough, it's a scientific trick."

Seeing this result, when Tang Ze was about to express his opinion that he had guessed a long time ago, Maori Kogoro suddenly said: "So it seems that he really committed suicide."

Maori Kogoro said as he gestured for everyone to look at the surrounding environment, "Look at this situation, this coffee doesn't look like it was drunk by anyone, right?

Moreover, all the windows and doors in the room were locked tightly. In addition, Mr. Zhukou did not have a spare key. Doesn't this mean that this is a secret room?

In this case, it's suicide no matter how you look at it, right?"

"Here we go again, here we go again, Kogoro Mori's suicide theory..."

Conan and Tang Ze looked at each other, both with helpless expressions.

It is said that there are no accidents in a secret room, but for Kogoro Mouri, any secret room seems to be considered a suicide.

This is almost becoming another law.

"Why..."

Takagi disagreed with Maori Kogoro's conclusion: "If someone had added cyanide poison to the coffee beforehand, wouldn't that be a murder in a locked room?

Of course, this assumes that the criminal knows that Mr. Zhukou is used to drinking a cup of coffee every morning."

"well..."

After hearing Takagi's words, Maori Kogoro sighed and said speechlessly: "Do you think a normal person would drink coffee while holding the key to his room?

Of course, it was impossible for him to grab the key immediately when he found that the coffee was poisonous after drinking it, after all, cyanide poisoning takes effect very quickly.

This means that the key could only have been in Mr. Zhukou's hand before he drank the coffee."

"But why do you have to hold the key yourself?" Sato Miwako asked in confusion.

"I'm afraid this is a deliberate action made by Mr. Morokuchi to convey some message." Kogoro Mori said seriously.

"But Mr. Moroguchi, I have an appointment this morning to have a formal meeting with you, Mr. Mori?"

Takagi's words made Maori Kogoro's expression freeze, and Takagi smiled and proposed a possibility: "It is also possible that Mr. Moroguchi found that he had overslept and hurriedly took the key to go out.

It's entirely possible that someone might drink a cup of coffee to sober themselves up and end up being poisoned."

"Oh, really, please look carefully."

Maori Kogoro put his hands on his hips and pointed helplessly at where the coffee cup fell: "You see, the cup fell on the bed, right?

The coffee machine is located in the study on the other side.

If he was really in a hurry, Mr. Zhukou should have gone to the kitchen to pour coffee and then drank it right there.

And look at the bedside table, isn’t there a coffee cup and saucer?

This shows that Mr. Zhukou drank his coffee by the bed, proving that he was not as anxious as you say."

"But is there another possibility?"

After hearing what Maori Kogoro said, Sato Miwako beside him also thought of a possibility: "After Mr. Moroguchi got up this morning, someone came to this room.

After mixing cyanide poison into coffee, she brought it to him, urged him to hurry out, and then left the room.

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