"Conan? What happened to this Asama Yasuji robber gang? Is there a problem? ”

Seeing Conan like this, Yukiko couldn't help but ask curiously, but Conan, who got the news, couldn't care about her anymore.

"I'm going to tell Brother Yuichi about this! I think I know who the killer is! Among those few people, only that person may have something to do with the robbery, and the others are not qualified! Asama's body has just been found, and another woman in this gang has heard from Officer Nishimura that she has drunk medicine and died, so if you look at it this way, there will be an unknown guy hiding in the shadows, and the only one who can make Asama Yasuharu feel at ease and boldly rob the jewelry store is him! If this is the reasoning, then the murderer hides his own tricks, and I understand! What I don't know yet is the motive of the criminal! ”

Just as Conan was running towards the room where Yuichi and the others were, the stone hammer of Yasuharu Asama, who saw the police carrying him in, shook his head and secretly leaned towards Yuichi and them.

"Mr. Officer! I have a major clue to report! ”

"Oh? What a clue! ”

Seeing the sneaky appearance of the stone hammer, Officer Nishimura subconsciously frowned, and immediately replied to his cold and arrogant expression and asked in a low voice.

"Originally, I was going to give Keitaro Yun a trick on the day of the election, but now that he's dead! Then I won't have anything to keep! I know how Keitaro Izumo got in touch with Yasuharu Asama! ”

"Oh? How are they connected? Officer Nishimura, who had already established that the murderer was related to Keitaro Izumo and Yasuharu Asama, heard the news that Akira Ishigum had said, and he looked at the other party suspiciously and continued to ask quietly.

"Keitaro Izumo, a hypocrite, is not as great as he has shown people, and I have definite information and evidence that he is secretly selling drugs! I think it was when he was secretly doing such an unseemly thing that he got in touch with a wanted criminal like Yasuharu Asama! ”

"What? Keitaro Izumo also sells drugs? ”

Officer Nishimura's face suddenly became wonderful when he heard the news, and in this way, the murderer's motive for killing Keitaro Izumo was complicated again! In this small carriage, there are so many people who are related to the deceased Keitaro Izumo, what is the reason why he was killed?

Compared to Officer Nishimura's hesitation, Yuichi, who had just gotten enough clues in the tunnel, didn't bother with the news provided by Akira Ishigami, and instead walked along the carriage towards Asama's room.

"In order for the murderer to perform a trick, he must kill the owner of the room, Yasuharu Asama, in advance, and then use the props in his hand to tie Asama's body outside the glass window that has been broken by him under the cover of night, and then he pulls the prop line that binds Asama Yasuji along the unlocked door to this corner, and then hooks a prop that can fix the line! Ha! Yes, there is this hook at the corner of the aisle and at the door of the carriage room, so after arranging it, as long as Uncle Maori and them chase after them, open the door that is not locked but closed, and then shoot at the glass window that has been broken, and then shoot Uncle Maori and the others to force him back, he took the opportunity to take two quick steps to hide at the staircase to the room on the second floor, cut the line tied to this hook, and then hide down the stairs back to his room, you can perfectly shift Uncle Maori's eyes to Asama Yasuharu who jumped out of the window to escape. ”

And to perform this trick, the murderer must solve two puzzles, one is Azusa Izumo, who has been sitting in his room all day and has not gone out, and the other is to make sure that there is no one in the two rooms behind the stairs where he is hiding, and he will not suddenly come out and find himself! So if you speculate backwards, the easiest person to do these two things can almost be said to be that the murderer didn't run away! ”

Remembering that Keitaro Izumo asked that person to bring dinner to his wife when he was in the dining car before, and on the second floor behind the staircase where he was now was the room of Keitaro Izumo and that person, plus the fishing line in the fishing tackle in his hand that could be used to cast this trick, Yuichi who had already determined who the murderer was, knocked on Izumo Azusa's room.

"Mrs. Izumo! I also deeply regret what happened to Mr. Izumo, in order to catch the murderer of Mr. Izumo as soon as possible, I need to confirm some more things with you, did you have dinner before the shooting at night? Or have you drunk any water that someone else has given you? ”

"Dinner? Of course I did! Kaga sent it to me, but I didn't drink the water! But I drank the soup from Kaetsu! What's wrong? Mr. Policeman, what does this have to do with solving the case? You don't suspect that Ka Yue did it, do you? I don't think it's possible! That person in Kaetsu has always been diligent and hardworking, although my husband is sometimes a little strict with him, but I have comforted him in private! He has always been grateful for my encouragement! ”

"I wish it wasn't him! So in order to dispel his suspicions, it is even more important to find out these things! By the way, did you eat all the rice and soup? ”

Seeing Izumo Azusa's somewhat excited look, Yumi, who knew that she couldn't believe the truth, smiled and began to soothe her, and Izumo Azusa, who had calmed down, also took out two plastic bags from the trash can in her room.

"That's what I've left, take it if you need it!"

"Thank you! Mrs. Izumo! ”

After taking the two bags of leftover rice and soup with a blank face, Yuichi turned around and called a Hokkaido criminal policeman standing in the carriage to his side.

"Take this to the forensic department! I want to know if there are any sedatives in these meals and soups, if any! Tell me now! ”

"Yes! Officer Yuichi! ”

The criminal police officer who received Yuichi's order knew that he was a big man who could call him a brother and sister to his boss, so he didn't dare to be a little slack, and after saluting Yuichi, he turned around and ran towards the room where the forensic department was located.

And Yukai, who had arranged all this, looked at the room opposite Keitaro Izumo on the second floor of the staircase aisle and walked up with a sneer, and now it was time for him to meet the cunning murderer.

"The young man in black-rimmed glasses smiled like a boastful ......"

Remembering the description of this passage and the young detective's final fate, Yuichi, who laughed at himself, knocked lightly on Kayue Rizzer's room.

"Is Mr. Kayue resting? I'm Yuichi Kudo from the Tokyo Metropolitan Police Department's Search Section, and I have some information I want to know from you! Is it convenient? ”

"Yuichi Kudo? How did you...... Ahem! Welcome! Welcome! Hahaha! It is the duty of every citizen to cooperate with the police in handling cases! Besides, how could I sleep if something like this happened? I just accompanied our boss lady to identify the corpse, and I saw Mr. Izumo, who was still pointing out the country, lying on the ground coldly, and now my heart is a shadow! ”

"Oh? Is it? I'm so sorry to have reminded you of your sadness! By the way, Mr. Katsu, is your relationship with Mr. Izumo just that of your subordinates and your boss? ”

Kaetori, who had opened the door, walked into his room, swept his gaze off the tackle again, and asked with a smile on his face.