At this moment, when he heard the riot at the scene, Conan, who was still in the radio room, realized that the situation was not good, and also hurriedly ran down.

Looking at Masato Shimizu, who had fallen to the ground in the room, Conan couldn't help but be stunned in place, a little overwhelmed-

He......

Committed suicide......

Indeed, there is nothing wrong with his reasoning.

In order to clarify the method used to kill Kuroiwa Tatsuji in the third incident, the murderer must have taken the poison needle stained with puffer fish poison from the scene afterwards, but because after the incident, everyone present was forcibly left at the scene by the police on the grounds of interrogation, and the murderer had no chance to take the poison needle away.

Therefore, this is the only evidence to identify the murderer.

In order not to give the murderer the opportunity to dispose of the poison needle as a murder weapon, and at the same time to identify the most favorable evidence for the murderer, in this case, he chose to directly reveal the truth.

In this way, as long as the murderer is controlled, then all the problems after that will be solved......

But......

The poisonous needle that is used as a murder weapon is indeed on the murderer's own body......

He actually ......

So, was it his own judgment that forced him to death?

Remorseful, Conan didn't know what to say next to express his emotions -

If, as a detective, the more you crack the difficult to solve the problem, the more you can make yourself feel excited, and in the process of pressing step by step and chasing the prisoner to the end of the road, such a sense of accomplishment, as long as you experience it once, you can't stop, so that you can't stop continuing to be a detective, then now......

Is this also because of yourself?

Obviously, when I was in Hakone Town, I didn't feel such a strong sense of frustration when I faced Mai Nishida who used Xiaolan as a threat to make it difficult, or when I faced the aggressive posture of the forensic doctor Hatsu Hirata.

But this time, the murderer chose to commit suicide in full view of his step-by-step questioning, and the result was ......

lowered his head, and Conan, who clenched his fists tightly, began to tremble a little, as if time could be repeated, even if he risked that the murderer would dispose of all the evidence, he would not reason like this in a hurry......

And now, puffer fish poison is incurable poison, and because it enters the blood circulation directly through the wound, Shimizu Masato is already certain to die-

Even at this moment, there are still some weak vital signs, but due to the particularity of puffer fish venom, the toxin cannot cross the barrier of blood cells in the brain, so the body paralyzed and unable to move Shimizu Masato will be conscious, in the shackles of the body, helpless death......

"So, is that the end of it......"

Muttering, Conan said a little weakly-

"The murderer of the three incidents, Masato Shimizu, died, and it was also confirmed that the person who was still smuggling illegal drugs on the island was Kazuaki Hirata...... That's all I have to do, Officer Twilight......"

Restrained his emotions a little, Gao Yuan, who had already understood what was happening at the scene, glanced at Conan, who was in a lost mood with his head down at the moment, and Gao Yuan couldn't help but explain to Officer Twilight.

In this regard, Officer Twilight could only sigh helplessly-

Now that the matter has come to this, with the murderer's suicide, all the truth can only be settled.

In this way, when the police got the Metropolitan Police Department, the forensic doctor confirmed two things after the autopsy results of Ken Nishimoto and Hideo Kawashima -

First, Ken Nishimoto had not taken any illegal drugs before, so as the first time he took a large dose of illegal drugs, this led to Ken Nishimoto's death.

And this can rule out the inference that Ken Nishimoto caused his accidental death by overdose of illegal drugs.

As for the second point, there are very slight traces of being controlled on Hideo Kawashima's body, and combined with the fact that the police later investigated that he was actually a very good person in the water, so it is very unlikely that he would drown in the sea.

Therefore, these two points also confirm that the two of them were actually killed.

After that, the police found a lot of illegal drugs in the homes of Kazuaki Hirata and Hideo Kawashima, so the police and the people of the Department of Anaesthetic Control naturally arrested Kazuaki Hirata.

As for the follow-up development, Gao Yuan and others, who have already boarded the ship and left the island, no longer care about it-

"So, Mr. Wise went out to investigate, what else did he find?"

On the boat on the outlying island, leaning in front of the railing of the splint, Conan looked at the endless sea with a melancholy expression, and slowly asked Gao Yuan beside him:

"Could it be that with the death of Shimizu Masato, many doubts will never be solved?"

"What's the ...... about this?"

Slightly helpless, Gao Yuan also looked at the sea from afar, and replied surgingly:

"After all...... You only have one life, and when you die, you can't speak again......"

After hearing this, Conan became even more depressed and speechless for a long time.

And in this regard, looking at Conan's reaction, Gao Yuan was quiet and very emotional, thinking back to what he did last night before leaving-

"So...... Should I call you ......?"

With the death of Shimizu Masato, and the context of the smuggling of illegal drugs on the island has gradually been clarified, when the incident should have ended here, standing in front of the police station on the island, looking at the only one on the island, the old policeman, in the absence of anyone else in these four places, Gao Yuan still couldn't hold back his curiosity, and asked the old policeman -

"Keiji Aso!"

As soon as these words came out, the old policeman's expression did not change much, he wore glasses and looked at him, but he lingered on Gao Yuan for a moment, and then as if nothing happened, he yawned, turned around and returned to the duty seat of the police station, without saying a word-

"Although in the whole thing, it seems that you didn't do anything, but the key thing is that in the clues that you told Conan, so that the Maori detective could finally unravel the truth, you may have told a lie in order to forcibly make us suspect Kazuaki Hirata-

That is, since Hideo Kawashima and Kazuaki Hirata chose to use the hidden opening of the piano to trade illegal drugs, it is obvious that they do not need to deliberately meet often in the community center, and even in order to avoid suspicion, they did not go to the piano room of the community center to pick up illegal drugs and cash at all at all.

"How is it possible to find out that there is a close connection between them in their position?"

Although the old policeman didn't say a word, in the face of such an inquiry, the other party didn't even ask a rhetorical question, and Gao Yuan couldn't help but continue-

"But the thing that I can't understand the most is actually the score that Keiji Aso left behind from 12 years ago......

"There is one thing that I feel very inconsistent with what I mentioned above-

"That is, if according to the statement interpreted in the musical score, when Keiji Aso and those four people engaged in illegal drug smuggling transactions, they used the same musical score code to communicate, then why, before Aso Keiji died, he still used this code to write such a musical score-

"Isn't he worried that this score will not only not be transferred to his children in the end, but will be at risk of being discovered by those four people?"

With a serious expression, Gao Yuan was a bit like asking and answering himself, and muttered......