Okay, this is not as weird as I originally planned.
Riddle:Conan, Ran and Kogoro just arrived at a hotel to stay in on their vacation. They were invited as VIP guests thanks to Kogoro's fame. There was a fierce rivalizing between this hotel and the other hotel across the street so they needed somebody to advertise them.
After they entered one of the three deluxe rooms, they heard something falling then painful groans from another room. They rushed there, opened the door and switched the light on since it was already night, but it remained dark. They used the flashlight-wristwatch. The director of the hotel was lying on the floor. He was alive and had no injuries. They called for an ambulance immediately but Conan suggested to call the police too.
He noticed the following things: All the light bulbs were missing from the lamp. The TV and the video tape recorder was turned off. Both remote controls were in their places, like in their own room. The video tape was empty, but a bit warm. The mirror in the room had a small fluorescent tape on it.
The manager of the hotel appeared at the scene and said: This must have been done by somebody from the other hotel to ruin our reputation!
Conan looked suprisedly at the manager then suddenly ran to the window and looked out into the night. He saw a small dot of light across the street. He smiled and said: Manager-san, deluxe rooms in this hotel are on the same floor and they have the same TVs that are different than other rooms have, aren't they...
Questions to answer:What happened to the victim?
Who is the culprit?
What and how did the culprit do?
How to prove it?