How did the famous detective Conan 3 1 Conan know the prisoner with tapes?

Which episode of the tape with the answering machine are you talking about?

That tape recorded the music of the music box (the alarm clock designed by the hotel), and the music box was missing a needle, which is a sound. Conan went to the crime scene (hotel) to record the music of the music box because a sound was missing. So it is unique in the world! It cracked.

No music box was found next to the victim's fat bathtub!

Content review

1. The murderer called his wife to the hotel and secretly opened a room next to his office (still announcing that his wife was at home) so that she could call his office at the appointed time;

2. Call Maori and others to their office, say something useless, and when it's almost time to make a phone call, go to the toilet and deliberately let others answer the phone to prove that his wife is still alive (and at home! This is the key! ! );

3. After Lan, Nan and others left, the murderer chatted with Maori and went to his wife's room to kill.

4. After chatting for a while, I sent Maori away. Then send his wife's body to the underground garage through the laundry passage, load it into the car, take it home and put it in the bathtub;

5. Leave home, go home again, and pretend to "find the body" to report the case;

According to the police investigation, the time of death is the time when the murderer was in the hotel. Coupled with the testimony provided by Conan after answering the phone, there is a sufficient alibi! !