Mr. Xu Yang died in his own bathroom with his bathrobe half undone, and the time of death was determined to be no more than 5 hours ago. Officer Wang arrived at the scene to interrogate Xiao Wang, Yang Gang, Li Bai, and Gou Gou.
Xiao Wang: Yesterday, Xu Yang invited me to his house to discuss business. It got late, and he originally wanted me to stay for dinner, but I had a sudden matter to attend to and left. About an hour later, I remembered some important documents and called Yang Gang to help me get them.
Yang Gang: I received the call and drove Mr. Wang's car to Mr. Xu's house, but the door was open, and no one was inside. I went in, heard water in the bathroom, so I just greeted him and kept looking, but after searching for a long time, I still couldn't find the documents. That set of documents was quite valuable!
Li Bai: What, my cousin died? Yesterday, after he finished discussing business with Mr. Wang, we even had dinner together. After dinner, I went to the guest room to sleep.
Gou Gou: Yesterday, I delivered dinner to the room and wanted to ask if anything else was needed, but Young Master Xu asked me to leave. About 5 minutes later, I ran into Yang Gang.
Who is the murderer? How did Officer Wang figure it out? Submit your answers by ten o'clock, good luck! Anyway, since everyone isn't expecting payment, I'll post a little less to avoid waste.
A reasoning puzzle after a meal (concluded)
Replies (31)
These are Li Bai's words: 'Yesterday, after he finished discussing business with Manager Wang, we even had a meal together.' These are the dog's words: 'Yesterday, I delivered dinner to the room, intending to ask if anything else was needed, but Young Master Biao sent me out.'
However, according to Yang Gang's description of 'running into Yang Gang again after 5 minutes,' 'the door was open, and there was no one inside,' it seems that he didn't encounter the dog at all, and he heard the sound of water in the bathroom. Could it be that Xu Yang only spent '5 minutes' eating before going to take a shower?
Yang Gang said the door was open with no one inside. Five minutes after talking to the dog, he ran into Yang Gang, and he said there was the sound of water in the bathroom. He greeted, so could he know who was taking a bath without looking? Therefore, based on this reasoning, the murderer is Yang Gang.
Tip: The answer has not appeared yet, everyone should understand it in the context of the whole text, and not focus on the minor details.
Li Bai's words and the dog's words are contradictory, so one of them is lying, and the person who is lying is the murderer.
With a reminder from Brother Suixin, everyone in the villa has their own room, and the spaces are not small. Each room may have an attached bathroom, so Yang Gang's bathroom witness is valid, Li Bai's shared dining in his bedroom is valid, and Mr. Wang being absent can be ruled out. Therefore, the murderer is very likely the dog, because he said he would meet Yang Gang in about five minutes, but Yang Gang did not see him. Moreover, Xu Yang finished a five-minute meal and then went to take a shower, which is unlikely. So the dog saying he saw Yang Gang was a diversion; in fact, when Yang Gang arrived, the crime had very likely already been committed, which caused the time confusion in a panic.
Why didn't Yang Gang see the dog, while the dog saw Yang Gang? Because at that time, the dog was very likely in Xu Yang's room and had already committed the act. So seeing Yang Gang was meant to reduce its own suspicion and also to divert suspicion. However, due to panic, it misjudged the time and exposed itself.
Um… what's going on with this question, it's amazing! The hint I gave to Brother Liunian is still not quite right for him! Actually, it's not that complicated.
First, Xiao Wang cannot possibly be the murderer, so he is eliminated. Therefore, what he said is true, that Yang Gang took Xiao Wang's car one hour later, so he is also eliminated. That leaves Li Bai and Dog. Dog said he saw Yang Gang five minutes later, but in fact, Yang Gang arrived an hour later. If what Dog said were true, Li Bai should have met Yang Gang after finishing his meal, and Yang Gang should have met Li Bai as well, but they didn't meet. So Dog is lying, and Dog is the murderer.
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