Bai yanzhenyu looked away from Mr. Dongtian's bed and said to officer Gaomu: "officer Gaomu, it seems that Mr. Dongtian didn't lie. The murderer is probably Mr. Beichuan who sent him back to his apartment. However, if you want to prove his murderer, you still need to investigate something..."
Officer Takagi scratched his head and asked, "well... What are we going to do now?"
After a little thought, Bai Yanzhen Yu arranged and said, "well, let's act separately. Officer Gaomu, you go to the nearby department store to investigate. I'll go to Mr. Beichuan's house to see the situation."
"OK, I see."
Officer Gaomu nodded and took Conan to several nearby department stores. Baiyan Zhenyu went to Mr. Beichuan's house alone to collect clues.
When Bai yanzhenyu came to Mr. Beichuan's house, he found that Mr. Beichuan just didn't have it, so he opened the door with the unlocking tool he brought with him and secretly entered the room to check the situation.
"Sure enough, the receiving line of the video recorder is missing. It should be the murder weapon used to strangle the young lady of the village..."
"Eh? This is a picture of him and miss Murakami. It looks very close. Can you say... I see..."
After collecting the needed clues, Bai yanzhenyu quietly left, joined police officer Takagi who went to the department store to investigate and collect evidence, and waited for Mr. Beichuan's return outside Beichuan's house.
……
When the drunken Mr. Beichuan came back from outside and saw Bai Yan Zhenyu waiting outside, his face suddenly cooled down and said impatiently, "you are the policeman yesterday. What are you doing in my house? Didn't I tell you? I have nothing to tell your police..."
Officer Takagi smiled awkwardly and explained, "well... Sorry, but I'd like to ask you a few more questions about the situation when the body was found."
"As I said, because I didn't see Dongtian and Cunxi go to the company that day and no one answered the phone, I went to the door to find them in person, but I didn't answer the doorbell, so I asked the administrator to open miss Cunxi's door to check the situation. Unexpectedly, the chain lock was also locked."
"But through the crack in the door, I saw Dongtian lying on miss murashi's bed, so I shouted at the door to wake him up, and then Dongtian opened the door for me and the administrator."
"When we entered the room, we found the murdered miss murashi in the bathroom, and then called the police. Well, that's all I know. Don't bother me again."
Mr. Beichuan impatiently described the situation at that time and was ready to return to his home for a rest.
Seeing that Mr. Beichuan was ready to leave, officer Takagi grabbed his arm and said, "wait, Mr. Beichuan, I have something else to ask you..."
Mr. Beichuan turned around and said with a bad look: "I said, Mr. officer, what have you been pestering me? You won't doubt that I killed miss murashi?"
"Yes, we do suspect that you are the murderer."
Baiyan Zhenyu did not wait for officer Gaomu to speak and said bluntly, "Mr. Beichuan, you are the real murderer who killed miss murashi and then blamed Mr. Dongtian."
"What are you talking about?" Mr. Beichuan's face changed greatly and retorted sharply: "I didn't meet Miss Murakami that night. How could I kill her!"
Bai Yan Zhenyu smiled calmly and confirmed: "before you came back, we had investigated in the nearby department store. You recently bought gray quilt covers, bed sheets and curtains there. The employees of the department store can testify that I'm not wrong."
"Hum, so what?"
Mr. Beichuan's eyes dodged slightly and explained: "because the sheets and curtains in my room are too old, I bought new ones. However, after changing them, I don't like them very much, so I threw them away. Can't I?"
As like as two peas in the same room, but why did you choose the same color and the shade of the same color in the room? What's the reason why you can't explain it in a coincidental way?
Baiyan Zhenyu had enough evidence, so he seemed confident. He stretched out his hand to stop Mr. Beichuan who tried to defend. He reasoned: "first, you killed miss murashi and hid her body in the bathroom."
"Secondly, you first remove the decorations that are easy to attract attention in Miss murashi's room, such as the soul team calendar and cactus that Mr. Dongtian hates, then change the sheets and curtains into the same gray as Mr. Dongtian's bedroom, and then adjust the position of the furniture according to Mr. Dongtian's bedroom."
"Then, you invite Mr. Dongtian to drink. After he and Lingding get drunk, help him into miss Cunxi's room."
"Since you have arranged here almost the same as Mr. Dongtian's room, Mr. Dongtian in a drunken state didn't notice. After listening to you and locking the chain lock, he directly lay down in bed and slept."
After hearing Bai yanzhenyu's reasoning, Mr. Beichuan's forehead burst into a cold sweat and retorted: "how could it be like this? How do you explain the video receiver line of strangling miss murashi? Didn't the police say there were only Dongtian's fingerprints on it?"
Baiyan Zhenyu smiled and explained, "that's too simple. Mr. Dongtian is very proficient in camera equipment, so you probably made an excuse for him to help you repair the video recorder, so you left his fingerprints on it."
"A load of nonsense," Mr. Beichuan's eyes were a little flustered, but his face still showed disdain. He hummed coldly, "if you say I killed murashi, then you will show evidence?"
"The evidence, of course, is on your right thumb." Bai yanzhenyu raised his hand and pointed to Mr. Beichuan's right thumb wrapped with band aid.
"What?!" Mr. Beichuan was surprised and subconsciously covered his right thumb.
"Mr. Beichuan, Miss Murakami likes cactus very much, so even if they are moved to the balcony, they will not carelessly break many cactus thorns. I think the wound on your hand should be left when carrying cactus?"
Looking at Mr. Beichuan, whose face gradually turned pale, Baiyan Zhenyu took advantage of the victory and explained: "the cactus was given to miss murashi by the owner of the wine house that night. If you are not at the scene, what about the blood left on the broken thorn? That is the most powerful evidence to prove that you are the real murderer!"
Facing the hard evidence given by Bai yanzhenyu, Mr. Beichuan fell to his knees powerlessly and admitted his crime of killing each other because miss Murakami forced marriage.