Conan: Science Cartoonist Kudo Yuji

"So, you pretended to be Bai Yuan's handwriting and wrote a contract to sell the building to yourself at a low price and put it in the safe, thinking that since Bai Yuan is dead, there would be no evidence, right?"

In fact, Conan realized by the middle of the story that this guy was not the murderer. How could a man who voluntarily sold his ancestral property to make a living suddenly kill someone just because the landlord was unwilling to rent a house to him?

If Ryota Tamagawa really had the courage to revive the Tamagawa Dojo, he would have come to the Mori family for help when Conan won the Kanto Women's Karate Tournament.

Considering that both father and daughter have studied in this dojo for a period of time, even if Kogoro Mori does not agree to put his daughter's name on the dojo, he will use his connections and social resources to keep the Tamagawa School alive.

"I went downstairs after I released the contract." Ryota Tamagawa told everything he knew. He didn't think about anything else at this moment because he was not the murderer, so he was confident at all.

"Then Mr. Yuchuan, do you know who might have killed Baiyuan?"

As soon as Inspector Megure finished speaking, he was met with cold stares from several children, who all complained that the old police officer still knew nothing.

"Inspector Megure, after all, you should have some judgment after going through so many things." Genta shook his head: "Even I have guessed who the murderer is."

"I...I just followed the police procedure."

"This is obviously an outdated method?" Huihara Ai felt that Inspector Megure might be pursuing procedural operations: "This will not be effective."

"What's wrong with that? We've been living like this for so many years."

These kids never thought that if they made a wrong judgment, the wronged person would sue the police, and the Metropolitan Police Department would have to apologize publicly again, so protecting themselves was the only option the old policeman had.

Inspector Megure had no choice but to express his own judgment amid the children's condemnation: "Then Mr. Tamagawa, I hope you can help us find evidence that Namikawa is the criminal."

"Because Mr. Namishigami is the person who knows the building best besides Mr. Tamagawa." Rize remembered that Momohara and Namishigami worked together in the studio.

"Because he manages the building together with Baiyuan as his assistant."

Everyone was frozen. There seemed to be no direct evidence in the room that could prove that Naishin was the murderer.

The golf club used as the murder weapon was deliberately placed in the middle of the golf bag, the position that Tamagawa Ryota often used, and Sugi seemed to have deliberately worn gloves, resulting in only Tamagawa's fingerprints on the murder weapon.

No signs of death related to Namishin were found on the body of the deceased, which means that the murderer must have killed the deceased with one blow.

Although Namishida's fingerprints were left on the neatly laid desk and the safe, he could also use the fact that the robber was wearing gloves as an excuse to deny that he was the murderer.

"We've reached a complete stalemate." Several children looked at Conan.

"If we use luminol reagent to test whether there is Mr. Baiyuan's blood on Mr. Namiyasugi like we did last time, is that possible?"

Rize remembered Officer Takagi's method of solving the case, but Conan denied it the moment she said it.

"There was no blood spatter on the deceased."

According to the current situation, if it cannot be proved that Namikawa is the murderer, then Mr. Tamagawa, who has been watching the fun on the sidelines, will have to be sent by Inspector Megure to operate a sewing machine.

After all, judging from the things he has done, if he were not defended by a very capable lawyer, going to court would almost be like going to jail.

"Hey... think of a solution! You're a policeman, right?!" Ryota Tamagawa also felt something was wrong and stared at Officer Megure anxiously.

"And you kids, you just spoke very coherently, didn't you? Say a little more!"

"Really? Why is it so noisy?"

A familiar voice sounded outside the office. Xiaolan, who was walking in front, led Yuji into the building. When he saw Kudo appear, Inspector Megure, who had been panicking just now, calmed down instantly.

[Kudo! With Kudo, we are saved! ]

"Hey, Officer Megure, you're on duty." Yuji looked Megure up and down in surprise.

"I heard everything from Sister Xiaolan when I came here. There is no evidence in this case now, right?"

Yuji cast a suspicious look at Conan, and the tacit understanding between the brothers started again. Conan shook his head helplessly. [You can't prove that guy is the murderer?]

[Mr. Kudo can't reveal his true identity in front of everyone, right?]
Conan actually considered tricking Namishin, but with so many people around, it would be difficult for him to do so. Asking Xiaolan for help would also make her feel bad.

[Then use your usual trick, Shinichi-nii-san, tell me da da da or something.]
[What a coincidence, Mr. Kudo is wearing a karate uniform. Do you think I have a cell phone on me?]
[So what should we do?]
A newcomer suddenly interrupted the eye contact between the two people, and Conan looked at Rize in horror.

[Impossible, this is an ability only Kudo has? You...]
"Wow, the coffee smell in this room is really strong. I'm a little greedy."

Yuji interrupted Conan at the right time, but the great detective still couldn't give up his worry about Rize. He found that he had become so accustomed to her during this period that he even forgot the details of his previous investigations.

"Coffee, coffee..."

When Inspector Megure saw Yuuji walking towards the coffee machine, he said helplessly, "I can treat you to some premium coffee when the case is over, but for now, you should focus on the murder case. Besides, coffee is an important part of the case, so you can't drink it."

"I just think that you found the body at around three o'clock, but it's almost five o'clock now. The coffee is still there and it's still warm. So who made the coffee?"

Just like what Conan discovered before, there was something wrong. Coffee was clearly brewed but there was no coffee cup in the room. The person who brewed the coffee would not drink it directly from his mouth, right?
"Maybe he wanted to wait until the coffee was ready before drinking from the cup?" Inspector Megure cooperated with Yuji and said what the murderer might say from his perspective.

"Well, that makes sense."

Yuuji waved at Rize, "Did you ask the bystanders when Namiyasugi came back?"

"Sister Xiaolan called a parent who was waiting for her child at the gate and she said it was around 3 o'clock, shortly after the power outage."

Rize saw Yuuji nod, then asked a question.

"In that case, who made the coffee?"

If Bai Yuan had made coffee, it would have been cold by three to five o'clock.

"This 100,000 yen coffee machine from the United States has a feature that when the machine is restarted, it will analyze the concentration and temperature of the coffee liquid in the container and adjust the command task before the restart to overwrite it."

That is to say, after the power outage, the original coffee brewing program had its time and content re-modified and intelligently adjusted to the normal coffee temperature.

The boy took a pair of gloves from his pocket and put them on, then pulled up the records on the coffee machine's control panel.

"There is only one operation instruction on it. The starting data detected is 3:13. The coffee temperature is 87 degrees Celsius. The brewing quality of the coffee is shown as excessive. Judging from the time when Yuchuan went upstairs to restart the circuit, the coffee temperature had reached 100 degrees before the power outage, and it was brewed for nearly 20 minutes."

Yuuji turned and looked at Megure: "The coffee machine has obvious signs of use, it is not new, and if he operated it like this, the intelligent system would directly pop up a warning, but Naishi still pressed the confirmation button. The purpose of this setting is to cause power overload."

"The overload was caused by humans, so Mr. Tamagawa will definitely leave fingerprints on the golf club." Megure suddenly realized. He was wondering why Namishin was so sure that the power would trip today to complete his method.

"The next step is to find the Japanese branch of the coffee machine company to help restore the operating instructions for each step and connect the dots. Then the police can directly proceed with the procedure."

"Well, that's enough. The next step is to persuade him to confess."

Inspector Megure hurriedly arranged for the police to vacate the room so that he could talk to Namikagi, but Conan was a little confused.

“What if this guy insists that he made a mistake and used the wrong coffee machine?”

"If he could deny it even though his murder process was known to others, he wouldn't be a small assistant here." Yuuji glanced at Rize and asked in a low voice: "Besides, is he the murderer?"

"Nonsense, of course."

Yuji spread his hands flat, "Then keep him locked up for a few months, and wait for the police to turn the office upside down and crawl on the floor looking for clues. If someone kills someone, there will be no evidence that cannot be found as long as they want to investigate, unless the scene is bombed.

"...Don't talk nonsense."

(End of this chapter)