Conan shook his head and walked down the stairs, avoiding Aizen's hand.
"Aizen, look!"
Conan suddenly pointed at the pillars on both sides of the door. He found that there were traces of cutting on both sides of the pillars, but the traces were very shallow. If you don't look for it specifically or see it by chance, you may not notice it.
Aizen walked outside, looked at both sides carefully, returned to the eaves and said: "I already know the method to make Teacher Sugiyama appear. Anyone can do this method, but it is impossible to find out who the murderer is."
Conan also thought of the method that Teacher Sugiyama used to appear, so he nodded in agreement and said: "You are right. Although we know this method, we still can't know who the criminal is. At least those people have a chance."
"Okay, let's go in."
Aizen said as he walked into the house, and Conan followed behind.
In the hall, besides Ran Mouri and her two daughters and Atsushi Mori, Moriarty was also there. When he saw the two men come in, he said, "Mr. Aizen, have you found anything?"
Aizen shook his head and said, "No, I haven't found anything yet. We can only wait until the police arrive tomorrow morning to deal with it."
As he spoke, Aizen looked down the stairs and said, "By the way, where are Ms. Yonehara and the others?"
Ran Mouri said, "Ms Yonehara, Ms. Nakamura, and Mr. Sakai are all upstairs."
Atsushi Mori suddenly said, "Are they accompanying the person who is alone in the room?"
Ran Mouri shook her head to indicate that she didn't know, as she had come downstairs early.
Moriarty said, "No, they stayed in their rooms, at least that's what happened when I came down."
Aizen said, "The death of Mr. Sugiyama must have been a big blow to them, so they must have found it hard to accept it. It's normal for them to stay in their rooms alone."
"That..."
Conan walked to a place not far from Atsushi Mori and asked, "What happened three years ago?"
Atsushi Mori looked at Conan and said, "Little friend, you'd better not know, otherwise you won't be able to sleep at night."
Moriarty said, "This matter has something to do with the three words 'Minako', right?"
"Even if I don't say it, you can guess it."
Atsushi Mori said with memories on his face, "That happened three years ago. A girl named Minako Mochizuki hanged herself in the ballet club, but the child behaved very normally before and after, and had no intention of committing suicide at all. Akiko Yonehara, Minori Nakamura, Kohei Shimoda, Ryuichi Sakai, and Sugiyama all had a special relationship with Minako Mochizuki. They colluded in everything so that the case was finally closed with suicide."
"Impossible!"
Ran Mouri retorted loudly, "Teacher Yonehara would never do such a thing."
Atsushi Mori glanced at Ran Mouri and did not refute out loud. He was too disdainful to refute.
"Is that so?"
Conan nodded thoughtfully. Minako Mochizuki certainly did not commit suicide, otherwise what happened today would not have happened, and the culprit could only be one of Akiko Yonehara, Minori Nakamura, and Ryuichi Sakai. As for why Kohei Shimoda is not the culprit, you can tell by looking at Kohei Shimoda's performance.
"Ahhh!!"
Minori Nakamura's terrified cry came from the second floor, and everyone in the hall heard it.
Aizen, Moriarty, and Conan ran towards the stairs first. Aizen and Moriarty ran in front. When the two came upstairs, they saw Minori Nakamura sitting in front of Kohei Shimoda's door and Akiko Yonehara and Ryuichi Sakai standing behind Minori Nakamura.
The door was open. Aizen walked over and saw Kohei Shimoda lying on his back on the bed, his head drooping, with a very conspicuous mark on his neck, and his eyes wide open. It was obvious that he should be dead.
"Everyone, don't go in, otherwise it will be bad if you accidentally leave something behind."
Aizen said, and then walked into the room, but Moriarty also walked into the room, and Aizen didn't say anything about it.
Aizen felt the pulse on Kohei Shimoda's neck and said, "He's dead."
Moriarty looked at the closed window and said, "The window is closed, and we have been downstairs all the time. The criminal can only be one of the three people upstairs."
Aizen looked around the body, but didn't find the murder weapon rope, so he walked towards the door and said to Akiko Yonehara and the other two, "Ms. Akiko Yonehara, the three of you stay here for a while, don't go anywhere, please."
"Uh... OK!"
Akiko Yonehara didn't understand, but nodded and agreed.
Aizen was about to go to other rooms to look for the murder weapon, but saw Ran Mouri and the other two coming up, and immediately said: "Ran, Sonoko, Sayuri, the three of you go to other rooms on the second floor and see if you can find a rope or something like a rope."
Although the three girls didn't understand why Aizen wanted them to do this, they nodded and agreed, and walked towards other rooms.
Aizen walked back to the room and searched in the room of the murdered Kohei Shimoda.
Moriarty was watching, and he said, "Are you looking for a murder weapon?"
Aizen said while searching: "Yes, there is no murder weapon left at the scene, so I want to see if the criminal has put the murder weapon away."
After a while, he searched the whole room and Aizen, but he didn't find the murder weapon. Not to mention the murder weapon, even items like ropes were not found.
After a while, Ran Mouri and the other two girls walked into the room and shook their heads at Aizen.
Aizen nodded and said to Akiko Yonehara and the other two, "Teachers, since there is no murder weapon left in any room on the second floor, and the culprit should be one of you three, the murder weapon is likely on the culprit. I wonder if you three are willing to accept the inspection?"
Akiko Yonehara and the other two looked at each other, and Akiko Yonehara said, "That's fine with me, but is the culprit really one of us three?"
Aizen said, "Thank you for your cooperation, Teacher Yonehara. From the current situation, that's the case."
Misato Nakamura said, "I am willing to cooperate too."
Everyone looked at Ryuichi Sakai, who raised his hands and said, "Don't look at me like that, I am willing to cooperate too." If he is unwilling to cooperate, he will only be suspected of being the murderer. He has nothing to hide, so he is willing to cooperate and will not make trouble for no reason.