The police station searches a lesson, the hall this institute continuously murders the case to search the headquarters, the huge conference room only has the Mu Mu group's public, as well as temporarily called over Gao Cheng and Maori xiaowulang.

"That's the situation," Mu Mu said. "According to the direction provided by Chenghu's brother, we found the key person in this case, that is, xiangmaguang, qiuting Lianzi's fiance who died three years ago."

"But officer Mumu," Maori Kogoro interjected, "even if she has the motive to kill those four people, doesn't that mean she is a prisoner? Besides, it's been three years. Why did you choose to take revenge at this time? "

"That's right..."

"Officer Mu Mu," Gao Cheng asked, "besides Miss Qiu Ting, who else might have this motive?"

"About xiangmaguang," Takagi said, taking out his notes, "his mother is an unmarried mother who died five years ago, and he has no other brothers and sisters..."

"And his father?"

"I don't know. I don't even know whether I live or die."

Gao Cheng listens to Gao Mu's explanation and looks at xiangmaguang's information.

In this way, apart from Qiu tinglianzi, the only one with motive is the father with unknown identity. The problem is that there is no way to find out

Gao Cheng's attention falls on the date of birth of xiangmaguang, August 3, 2002.

If he remembers correctly, the license plate number of the pianist Pu he and the old man is "52-83". It's a bit of a coincidence. I don't know if it has anything to do with xiangmaguang... Anyway, as a piano tuner, Pu he is really easy to manipulate in that practice room. He is also a suspect.

"In addition to the accident of xiangmaguang, the four people who were killed also caused many problems," Sato explained. "Once they were drunk and played on stage, which made Mr. donamoto furious..."

"What?" "When did that happen?" asked Kogoro Maori

"It was a concert a year ago, and the repertoire was Beethoven's Piano Quartet..."

"Is that so?"

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

"I see. Officer Mumu, I've thought about the identity and motive of the prisoner who made Miss riverside seriously injured and attacked miss qiuting!"

"Ah?"

Mu Mu Lengshen looked at Maori Kogoro, a face confused, always feel some untrue.

"Is that true, Maori?"

"That's right," Maori Kogoro said confidently, "that prisoner is the son of Don Benyi, and don benxian is also the son of Don Benyi!"

"Why?"

Gao Cheng is surprised to see his uncle who is thinking like a horse.

How can it be related to Tang Ben's son? It's fair to say that the prisoner is Tang Ben's son, because Xiang Maguang is not the illegitimate son of Tang Ben's son.

According to Ma Guang's family situation, his father is very likely to be a celebrity in the music industry, so he can't recognize him publicly.

Wait, there seems to be something wrong

Gao Cheng, with a deep heart, reviews the whole case and analyzes Xiang Maguang's father.

The biggest problem is why he chose this time to commit the crime, and it also affected the unrelated River Sonata, causing serious injury to the river sonata.

It can be said that his criminal psychological analysis has encountered a lot of troubles. After all, his experience is limited, and he can only use his past experience.

It's necessary to investigate again.

Just when Gao Cheng thought it over carefully, Maori Kogoro had already asked Mu Mu's permission. That night, he went to tangben's house and directly confronted him face to face.

"That's right, you are the prisoner, and don benxian is the one!" "Because you're a fan of Beethoven, and you're a super fanatic fan! The reason why they killed those four people was that they played Beethoven's works drunkenly. They were blaspheming the great composer

"What are you talking about?" Don benxian also looked at the plausible uncle for no reason. He didn't expect that police and famous detectives would come to him at such a moment. It was because tomorrow's concert would be busy enough.

"Hum," Maori Kogoro said to Tang benxian without flinching. "The reason why you hurt Miss riverside is that when you worked with her before, you were seriously opposed to each other for the interpretation of the music. This is also mentioned in Miss riverside's essay collection

"The reason why you hurt qiutinglianzi and made her unable to perform in concert is that she said in private that she hated Beethoven's Ninth Symphony... As a Beethoven fan, the evidence is that you even have Beethoven's hairstyle!"

"Are you kidding?" Tang benxian also said angrily, "my hairstyle is natural. How can I feel like a murderer because of this kind of thing? And isn't it normal for musicians to have opposites? "

Gao Cheng stands behind several police officers, unable to look directly at the dispute between uncle Maori and tangbenxianye.

He didn't agree with my uncle's judgment. He just wanted to meet the host here, Tang Ben, who suddenly changed to play the organ.

"Well?" With a wave of his steady temperament, Tang Ben looks at Gao Cheng at the back. He doesn't look like a policeman.

"Mr. police officer," he didn't pay much attention to Gao Cheng. With a wave of his hand, Tang Ben said to the audience, "is the purpose of your coming here so late to publish this kind of third rate reasoning? There will be a very important concert tomorrow. Please go back first. When the concert is over, whatever you want to do is up to you! "

"Third, third rate reasoning?"

Maori Kogoro, who made a big trouble, was deeply hit, but he couldn't refute it for another time.

Uncle who didn't have Conan's help didn't mean anything. This trip was fruitless, but it caused the dissatisfaction of tangben. However, it was a good thing for Gao Cheng. Although uncle always did some third rate reasoning in a muddle, it was because of this that Conan was able to solve the case better and see many clues that could not have been seen.

At least Gao got a good chance to watch tamamoto wave.

In his notebook, the core of the relationship network of this case is a wave of Tang Ben.

Now that the preliminary results of the serial murders have been obtained, the only thing left is that there are quite important clues on the side of tonben's concert.

Police officer Mu Mu and his party left the house, but Gao Cheng stayed in the name of asking for music.

"Detective Edo can play the piano?" Although tonmoto didn't care much about things other than tomorrow's concert, he didn't know why he still talked with Gao. He also knew Gao Cheng's identity under the reminder of his son.

To be honest, for Gao Cheng, who is very popular in the music circle, he was not interested in music at first, and he was not a fan of reasoning all his life. However, in a few words, Gao Cheng's views on music surprised him.

"It's not bad," Gao Cheng asked, sitting in front of Tang Ben with a wave. "Mr. Tang Ben, I've always wondered why you suddenly gave up playing the piano all your life. Although the organ is good, it's not as good as giving up the piano completely, is it? I've seen Mr. Puhe tuning for you in tangben college. It's said that Mr. Puhe has been tuning the piano in tangben college. "

Tang Ben was silent with a wave of his face.

"The reason why I give up piano is just for some personal reasons..."

"I saw your performance video in tangben college," Gao Cheng said with a wave. "When you gave up piano and retired two years ago, there was a slight deviation in timbre. The real reason is that there was something wrong with Mr. Puhe's tuning, right?"

Tang benxian also looked at Gao Cheng in amazement: "how can it be? Mr. Puhe has an absolute sense of sound. How can there be a tuning deviation? "

"I'm also very strange," Gao Cheng said calmly, "but that's the fact. Miss habian's final message to qiuting Lianzi was," I really can't cooperate with these laymen who can't hear the difference in timbre. "The timbre difference here actually refers to the piano that is tuned by the music score and the teacher.

"For the riverside miss Zouzi who has absolute sense of sound, the two people who are not aware of the timbre deviation are of course laymen. Only miss qiuting who also has absolute sense of sound is worth talking to."

"Ju, unexpectedly is such a thing..." Tang benxian also gaped. As early as when the police went to rehearse the scene investigation, he already knew the message sent by riverside sonata to qiuting Lianzi, but he didn't expect to play the piano. He thought it was riverside Sonata who couldn't cooperate with them when they were playing together.

This will come to a sudden realization, just like a slap in the face, all of a sudden think clearly the cause and effect.

In admiration for Gao Cheng's reasoning ability, Tang benxian also asked his father: "Dad..."

With a wave, Tang Ben silently closed his eyes for a moment, but sighed: "it's true that Pu he has absolute sound sense, but maybe it's because of his age and hearing degradation. Without his own awareness, the problem of timbre deviation is getting more and more serious

"For the sake of his self-esteem, I don't want to blame him for this. After so many years of cooperation, I have no intention of looking for other tuners. I can only retire and stop playing the piano and let him be the director of the concert hall..."

Gao Chengjing, after listening to the story of Tang Ben's one wave, said that he had never had the friendship and partner that Tang Ben's one wave had accompanied for decades. It can be said that he almost spent the whole music career together.

However, he is not without his own partner. Xiao AI is his partner. Conan and even shobu Pingci are his partners. They can trust each other and rely on life and death.

So he has a say.

"Mr. tamamoto," Gao Cheng said, "in my opinion, concealment is not necessarily a good choice. If you really want to be a partner, the truth is the best support."

This time, he also understood that the murderer would choose this opportunity to install a bomb under the piano in the practice room of tangben College... After knowing the murderer's mind, many questions are no longer questions.

The killer is Tang Ben's piano tuner and craftsman

"I'll meet you tomorrow." Gao Cheng turns around and walks out of tangben's house.