Can you share some short whodunit stories?

Answer 1

A rare book was stolen from a locked study. The only people in the house at the time were the homeowner, his secretary, and a delivery man who had just dropped off a package. The homeowner was in his bedroom. The secretary said she was typing up some documents in the adjacent office. The delivery man left immediately after delivering the package. The secretary stole the book. She had made a copy of the study key long ago and had planned to sell the book for a large sum of money.

Answer 2

Here's another. A famous painting was slashed in an art gallery. The security cameras showed no one entering or leaving the room where the painting was. There were two guards on duty. Guard A said he was at his post all night and saw nothing unusual. Guard B said he had briefly left to check on a noise in another part of the gallery. The truth was Guard A did it. He had been bribed by a rival artist and had disabled the cameras for a short time while he slashed the painting.

Answer 3

Sure. One short whodunit story could be: In a small, locked room, a valuable diamond has disappeared. There were only three people who had access to the room - the butler, the maid, and the owner's nephew. The butler said he was polishing silverware in the kitchen. The maid claimed she was changing the bedsheets. The nephew said he was reading in the library. But there were strange fingerprints on the safe where the diamond was kept. It turned out to be the nephew. He had made up the alibi of reading and used a fake fingerprint device to mislead the investigation.