After the dark shadow in the piano room heard the door open, although he knew by the light of the corridor that it was just a child, he didn't mean to do anything at all, turned around and ran, breaking out of the window.

"Don't run!" Seeing that the black shadow was about to run, Conan hurriedly chased after him.

"Wow!" A few steps after he ran, Conan tripped over something and fell directly to the floor.

Looking at the broken window, even though he was very unwilling in his heart, Conan could only helplessly look at the thing that tripped over him. "Mr. Murasawa!"

By the light outside the door, I saw Murasawa lying on the floor with blood streaming down his head, struggling to get up.

"Ahh

"Xiaolan!" Hearing Maolilan's frightened shouts outside the corridor, Conan suddenly didn't care about Murasawa Monday, and ran out directly, afraid that something had happened to her.

Seeing Mao Lilan stretching out his hand and pointing to the inside of the warehouse in horror, Conan didn't know what was going on inside, so he quickly ran in.

"It's Mr. Nishimoto!" Looking at the man who was hanged up, Conan immediately said to the old officer, "Grandpa Policeman, hurry up and inform Officer Twilight of them!" ”

"Oh good!" The old police officer slowly recovered from the fright, listened to Conan's words, and quickly ran out.

Looking at the old police officer who ran out, Conan turned his head and saw a tape recorder placed in the bright place, walked over, looked at the tape recorder and said to himself, "One-sided 30-minute tape, in this case, Mr. Nishimoto's death time is less than 30 minutes." ”

Mao Lilan, who was standing outside the door, suddenly said loudly: "Conan, look, Mr. Nishimoto seems to have a musical score at his feet!" ”

Listening to Maolilan's words, Conan immediately walked over, looked at the notes on the first sheet of music, and suddenly didn't know what to say.

Seeing that Conan was silent, Mao Lilan couldn't help asking, "Conan, what did you write this time?" ”

"Suicide note!" Conan was half answering, half muttering to himself.

"Suicide note! Hearing that it was a suicide note, Mao Lilan immediately looked at Ken Nishimoto, who was hanging on it. If he said that, he killed everyone.

"What suicide note?"

Hearing the sudden sound, Mao Lilan immediately turned his head to look, but saw Yamamoto Yoshitsuru holding the injured secretary Hirata Kazuaki walking over, seeing this situation, he couldn't help asking: "Yamamoto, this is"

"This guy wanted to run away after breaking the window just now, but he happened to be caught by me, and he still wanted to resist, so I had to make him suffer a little." Yoshitsuru Yamamoto smiled, he had been waiting there for a long time, but fortunately he did not deviate from his original track this time. Ken Nishimoto still died in the warehouse, and the scapegoat also went to pick up things on time, and he broke the window and tried to escape, but he was knocked down at once.

Conan, who heard the voice and walked out of the door, heard this, and immediately said, "Brother Yamamoto, you mean that it was the secretary Mr. Kazuaki Hirata who broke the window just now, right?" ”

"Of course!" Yoshizuru Yamamoto nodded, and was about to say something, but when he saw Officer Twilight and Mori Kogoro and others arriving, he immediately said to them: "Officer Twilight, Master Mori, it seems that there is a dead person in the warehouse, and that person seems to have left a suicide note." ”

"Suicide note?" Hearing this, Twilight Thirteen walked into the warehouse with some confusion.

Mori Kogoro didn't go in, but pointed to Hirata Kazuaki, who was caught by him and frustrated: "Yamamoto, what's going on?" ”

"This man!" Glancing at Hirata Kazuaki, Yoshitsuru Yamamoto shook his head and said, "Now let's wait for Officer Twilight to come out and see what the suicide note says." ”

As he was talking, Twilight Thirteen walked out with the sheet music and looked at the others: "According to the method that Conan said, the suicide note says that Mr. Nishimoto regrets killing Mr. Kawashima and Mr. Kuroiwa. The motive should be that the five of them once seemed to have made a mistake and killed people in order not to be exposed. These five people refer to Kameyama, who died three years ago, Kawashima and Kuroiwa, who were killed this time, and Nishimoto, who hanged himself this time, and Keiji Aso, who hanged himself twelve years ago. ”

Mori Kogoro was puzzled and said, "The pianist"

Twilight Thirteen nodded, "They must be doing something with these codes." ”

"It turned out that Nishimoto was afraid that the secrets of the past would be discovered, so he sneaked into this warehouse and wanted to destroy the score, but he couldn't find the score, and because he was desperate, he chose to commit suicide." Mori Kogoro muttered to himself as he looked at several people and said his reasoning.

Listening to Mori Kogoro's words, Conan couldn't help but say, "I don't think it's a suicide!" ”

"Oh?" "Huh?" Twilight Thirteen and Mori Kogoro couldn't help but look at Conan.

Pointing to the feet of Ken Nishimoto's corpse, Conan said to a few people: "Because there is no stepping stone, there is no way to hang himself." ”

Seeing that his reasoning was overturned, Maori Kogoro couldn't help but say, "Then, could it be that you put it away?" ”

"How is this possible!" Conan couldn't help but roll his eyes.

"I don't think it's possible!" Yamamoto Yoshitsuru suddenly spoke up, and when he saw a few people looking at him, he said, "I don't think there should be a person who commits suicide who uses a password to make his suicide note." ”

Hearing this, Twilight Thirteen couldn't help but say, "Then, Brother Yamamoto, do you mean that the murderer has someone else?" ”

"That's right!" Yoshizuru Yamamoto nodded and said to Officer Twilight, "Officer, I think you can call all the suspects to the public hall, I already know who the murderer is." ”

"Who's the murderer?" Twilight Thirteen and Mori Kogoro immediately asked.

"Let me keep it a secret, and when everyone comes, I will tell who the murderer is." Yoshitsuru Yamamoto smiled mysteriously.

"Okay!" Seeing him like this, Twilight Thirteen could only reluctantly respond and asked his police officers to summon other suspects to arrive.

Ten minutes later, in addition to Reiko Kuroiwa who was taking care of Murasawa Monday who was in a coma, the suspects Masato Shimizu and Makoto Asai arrived one after another, not to mention the rest of Kazuaki Hirata, who was sitting on the sofa with his head down, looking weak.

Seeing that everyone who should have come came, Twilight Thirteen said loudly, "Yamamoto, now that the suspects are here, shouldn't you tell me who the murderer is?" ”

"Of course!" Glancing at the somewhat unnatural Asai honesty, Yamamoto Yoshitsuru nodded and said, "Before talking about the prisoner, I think let's talk about the real reason for the death of Mr. Keiji Aso twelve years ago, because in this way we can sort out the case." ”

"The real cause of death?" Maori Kogoro frowned slightly and said, "Yamamoto, do you mean to say that Keiji Aso did not commit suicide, but he killed him, do you have any evidence?" ”

Without answering Mori Kogoro's words, Yoshizuru Yamamoto said out loud: "Keiji Aso, Isamu Kameyama, Hideo Kawashima, Tatsuji Kuroiwa and Ken Nishimoto are friends from childhood to adulthood. In fact, they are doing an unknown business, that is, taking advantage of Mr. Keiji Aso's overseas appearance, secretly transporting drugs back to sell. ”

"Drugs!" Twilight Thirteen was shocked and said, "Brother Yamamoto, do you mean that the five of them are selling drugs?!" ”

"Yes!" Nodding affirmatively, Yoshitsuru Yamamoto continued: "They put drugs in the secret compartment of Mr. Keiji Aso's piano and secretly transported drugs back to China for sale. But on the full moon night twelve years ago, perhaps out of conscience, Mr. Keiji Aso decided to quit. But where would the other four people allow it, after a long time of persuasion, the four of them worked together to kill Mr. Keiji Aso and his wife and daughter, and burned down the house with fire, pretending to cause an accident. ”

"I see!" Maori Kogoro sighed, and then said, "Yamamoto, what does this case have to do with the current case?" ”

"It's a big deal." Yamamoto Yoshitsuru looked at Hirata and Ming Dao: "Didn't I just say, they are using the secret grid of that piano to sell drugs, and the current piano is still there, so the secret grid is naturally there." Mr. Kazuaki Hirata, he is using that secret grid to sell drugs. ”

Looking at Kazuaki Hirata, who was weak and did not refute, Twilight Thirteen said, "Brother Yamamoto, do you have any evidence?" ”

"Of course!" Yamamoto Yoshitsuru nodded and said: "I caught Kazuaki Hirata jumping out of the window when I was out of the window just now, he has drugs on his body, and now the drugs are outside the window, police officer, you can send someone to the piano to take a look, and you may find residues in the dark grid." ”

Hearing this, Twilight Thirteen immediately said to the two police officers standing aside, "You two go to the two places that Brother Yamamoto just said and collect the evidence." ”

"Yes!" The two officers answered and walked out.

Seeing his subordinates go out, Twilight Thirteen said, "Brother Yamamoto, does the matter of Mr. Hirata Kazuaki selling drugs have anything to do with the case?" ”

"Of course it does!" Before Yoshizuru Yamamoto could say anything, Kogoro Mori said, "Mr. Kawashima, Mr. Kuroiwa, and Mr. Nishimoto who died were all members of the drug traffickers back then, and perhaps they are still selling drugs with Mr. Hirata." But Mr. Kawashima and the others wanted to stop for unknown reasons, but Mr. Hirata didn't agree, so he killed the three of them one after another. ”