The Metropolitan Police Department search section, the headquarters of the continuous murder of the Domoto Academy, the huge conference room is only the people of the Twilight Group, and Gao Cheng and Mori Kogoro who were temporarily called.

"That's the case," Twilight said, "Following the direction provided by Brother Joto, we found the key person in this case, which is Reiko Akiwa's fiancé Hikaru Soma who died three years ago. ”

"But Officer Twilight," Mori Kogoro interjected, "even if she had a motive to kill those four men, doesn't that mean she's a prisoner?" Besides, it's been three years, why did you choose to take revenge at such a time? ”

"That's right......

"Officer Twilight," Gao Cheng asked, "who else could possibly have this motive other than Miss Qiu Ting?" ”

"Regarding Hikaru Soma," Gao Cheng said, taking out his notes, "his mother is an unwed mother who passed away five years ago, and he has no other siblings ......"

"What about his father?"

"I don't know, I don't even know if it's life or death."

Gao Cheng listened to Takagi's explanation and looked at Soma Hikaru information.

In this way, in addition to Qiu Ting Reiko, the only one who has a motive is this unknown father, and the problem is that there is no way to find out......

Takasei's gaze fell on Hikaru Soma's date of birth, August 3, Showa 52.

If he's not mistaken, the tuner's score and the old gentleman's license plate number is "52-83", a bit of a coincidence, I don't know if it has something to do with Hikaru Soma...... In any case, as a piano tuner, it was indeed easy for him to get his hands dirty in that practice room, and he was also a suspect.

"The four people who were killed, apart from Hikaru Soma's accident, also caused a lot of problems," Sato explained, "and once they got drunk and played on stage, which made Mr. Domoto furious......"

"What?" Mori Kogoro asked, "When was that?" ”

"It was a concert from a year ago, and the repertoire was Beethoven's piano quartet......"

"Is that so?"

Mori Kogoro touched his chin and looked at the relevant materials on the whiteboard in the conference room, and suddenly showed a clear smile.

"I understand, Officer Twilight, let Miss Riverside be seriously injured, attack Miss Qiu Ting's identity as a prisoner, and the motive, I have all figured it out!"

"Huh?"

Twilight looked at Maori Kogoro in a daze, looking confused, always feeling a little unreal.

"Is this true, Maori?!"

"That's right," Mori Kogoro said confidently, "that prisoner is the son of Domoto Kazuwa, Domoto Kanya!" ”

"Why?"

Gao Cheng looked at the imaginative uncle in surprise.

How did it get to Domoto Yiwa's son, it makes sense to say that the prisoner was Domoto Yiwa, because Soma Hikaru is not impossible to be the illegitimate son of Domoto Yiwa.

According to Hikaru Soma's family situation, it is very likely that his father is a celebrity in the music industry, so he can't recognize each other publicly.

Wait, there seems to be some problem in between......

Gao Cheng calmed down, reviewed the entire case, and substituted Hikaru Soma's father for analysis.

The biggest question is why he chose this time to commit the crime, and it also affected Kawabe Soko, who had nothing to do with it, causing Kawabe Soko to be seriously injured.

His criminal psychoanalysis can be said to have encountered a lot of trouble, after all, his experience is limited, and he can only rely on past experience.

It's time to re-investigate.

Just when Gao Cheng was thinking about it carefully, Mori Kogoro had already asked for Twilight's consent, and went to Domoto's house that night, and directly confronted Domoto Ken face to face.

"That's right, the prisoner is you, Domoto String!" Mori Kogoro reasoned, "Because you're a Beethoven fan, and you're a super fanatic!" The reason why they killed those four people was because they were drunkenly playing Beethoven's works, which was simply blaspheming the great composer! ”

"What are you talking nonsense?" Don Benxian also looked at the uncle who was inexplicable, he didn't expect that there would be police and detectives coming to the door at such a juncture, because tomorrow's concert was already busy enough.

"Hmph," Mori Kogoro didn't flinch at all, and pointed at Domoto and said, "The reason why you seriously injured Miss Kawabe is because when you worked with her in the past, you had a serious opposition to the interpretation of the music, and Miss Kawabe also mentioned this in her own collection of short essays......

"And the reason why you hurt Reiko Akiwa and made it impossible for her to perform in concert is that she said in private that she hated Beethoven's Ninth Symphony...... As a Beethoven fan, the proof is that you even style your own hair like Beethoven's! ”

"What are you kidding?!" Don Benxian also said angrily, "My hairstyle is natural, how can I think I'm a murderer because of this kind of thing?" And isn't it normal for musicians to have antagonism?! ”

Gao Cheng stood behind the Twilight police officers, unable to look directly at the argument between Uncle Maori and Kanya Domoto.

The reason why he came along was not to agree with the uncle's judgment, but to meet the master of the place, Domoto, and meet this internationally renowned pianist who suddenly changed to playing the organ.

"Huh?" Domoto, who had a calm temperament, looked at Gao Cheng at the back with a wave of his senses, and he didn't look like a policeman.

"Mr. Officer," didn't pay much attention to Gao Cheng, and said to Twilight and the others with a wave of his hand, "Is the purpose of your special coming here so late to publish this kind of third-rate reasoning?" There's a very important concert tomorrow, so please go back first, and when the concert is over, whether it's a transcript or whatever, it's up to you! ”

"Three-rate reasoning?"

Maori Kogoro, who made a big fuss, was deeply shocked, but he couldn't refute it for a while.

Uncle without Conan's help is a little bit less meaningful, this trip can be said to be fruitless, but it caused dissatisfaction with Domoto's wave, but it is a good thing for Gao Cheng, don't look at the uncle who is always confused and doing some third-rate reasoning, but it is precisely because of this that Conan can better solve the case and see a lot of clues that he couldn't see.

At least Gao Cheng got a good opportunity to observe Domoto's wave.

In his notebook, the core of the network of this case is a wave of the book.

Now that the serial murder case has a preliminary result, all that remains is the side of the Domoto concert, and there are quite important clues on the body of the Domoto Wave.

Officer Twilight and his party left Domoto's house, but Gao Cheng stayed, in the name of asking for music.

"Detective Joto can play the piano?" Although Don Ben didn't think much about anything other than tomorrow's concert, he didn't know why he still talked to Gao Cheng, and he also knew Gao Cheng's identity under the reminder of his son.

To be honest, he was not interested in Gao Cheng, who was very popular in the music industry, and he was not a fan of reasoning who had devoted his life to music, but in just a few words, Gao Cheng's opinions on music surprised him.

"It's not bad," Gao Cheng asked as he sat across from Domoto with a wave, "Mr. Domoto, I've always been curious, why did you suddenly give up playing the piano all your life, and although the organ is good, it won't give up the piano completely, right?" I've seen Mr. Pykewa tuning you at Domoto Academy, and I've heard that Mr. Pyroyama has been tuning the piano that he put in Domoto Academy. ”

Domoto waved his face and was silent.

"The reason why I gave up the piano was only because of some personal reasons......"

"I've seen a video of your performance at Domoto Academy," Gao Cheng said with a wave of his direct gaze at Domoto, "When you gave up the piano and retired two years ago, there was a slight deviation in timbre, and the real reason was actually a problem with the tuning of Mr. Spectrum, right?" ”

Tang Benxian also looked at Gao Cheng in shock: "How is it possible?" Mr. Spectrum and Mr. Spectrum have an absolute sense of tone, how can there be a tuning deviation? ”

"I'm also very strange," Gao Cheng said calmly, "but that's the case, Miss Kawai Kanako sent a text message to Reiko Akiwa at the end, 'I really can't work with these laymen who can't hear the difference in timbre', and the timbre difference here actually refers to the piano tuned by Mr. Piao.

"For Miss Kawabe Soko, who has an absolute sense of tone, the two who can't detect the deviation of timbre are of course laymen, and only Miss Akiwa, who also has an absolute sense of tone, is worthy of her conversation."

"Ju, that's actually the case......" Domoto was also dumbfounded, as early as when the police went to the rehearsal site to investigate, he already knew about the text message sent by Kawabe Soko to Akiwa Reiko, but he didn't expect the piano to go up at all, and thought that Kawabe Soko couldn't cooperate when he played with those two.

This will suddenly dawn on me, as if I was drinking from the head, and suddenly think clearly about the cause and effect.

Impressed by Gao Cheng's reasoning ability, Don Benxian also looked at his father inquiringly: "Dad......

Domoto silently closed his eyes for a while, and sighed helplessly: "It's true that the spectrum and harmony have an absolute sense of tone, but maybe because of age, hearing has deteriorated, and the timbre deviation problem is getting more and more serious without him noticing......

"For the sake of Spectrum He's self-esteem, I don't want to blame him for this, after working together for so many years, I have no intention of finding other tuners, so I can only retire and stop playing the piano, and let Spectrum He come to be the director of the concert hall......"

Gao Cheng quietly listened to Domoto's narration, he did not have the friendship that Domoto had been with for decades, and he could be said to have spent almost the entire music career together.

But it's not that he doesn't have his own partner, Xiao Ai is his partner, Conan and even Hattori Heiji and his party can also be regarded as his partner, they are all relationships that can trust each other and rely on life and death.

So he also has a say.

"Mr. Domoto," Gao Cheng said, "In my opinion, concealment is not necessarily a good choice, if it is really for the sake of the partner, the truth is the best support." ”

This time, he also understood that the murderer would choose this time to plant a bomb under the piano in the practice room of the academy...... After knowing the murderer's thoughts, many doubts are no longer in doubt.

The murderer is Domoto's exclusive piano tuner, scorer and craftsman......

"See you tomorrow at the concert." Gao Cheng turned around and walked out of the house.