Decryption
Half an hour later, Sheng You stood in front of everyone again.
"I have solved all the mysteries."
"What's there to investigate? The murderer is him!" The crowd shouted, pointing at the survivor.
"It seems everyone has fallen into the trap of being a murderer."
"What? Who is the murderer?"
"The murderer is actually among us."
As soon as these words came out, everyone looked at each other.
"The murderer is the one who sat in this seat first!"
"How is it possible? The murderer wouldn't be so stupid! He poisoned himself!"
"The murderer was actually a very filial person. After his grandfather's death, he saw his brothers fighting over the inheritance and even physically harming each other. In order to protect his grandfather's property and also to teach his brothers a lesson, he set up this plan."
Sheng You paused for a moment, looked at Yiyi, and continued: "I asked his family members, the murderer had a deep affection with his grandfather. Since his grandfather's death, the murderer had thought of committing suicide several times, but was rescued each time."
"So, how did the murderer put the poison in the coffee?"
"That's a good question. The murderer deliberately arrived early to order coffee first. If they had ordered cola, it would have been impossible to poison the drink. When the two people arrived later, the murderer went forward and shook hands with them. Since the murderer was a magic enthusiast, it wasn't difficult for him to put the poisonous sugar cube into the cup while shaking hands. Yiyi also said that one of them said 'the coffee is very sweet', which was exactly what happened."
"Why wasn't that person poisoned to death?"
"This is where the murderer's ingenuity lies, leaving him behind would pin the title of murderer on his head, thus maintaining grandfather's property and killing his own brother, achieving his goal."
"Why did the murderer choose death instead of life?"
"He had wanted to die all along."
Sheng You finished speaking, and enthusiastic applause erupted from around him.

