Riddle: Madison has a little brother named Mike. They hated each other. On Tuesday night, their mother had died. Madison found her, and immediately called the police. The policemen search the house, but they couldn't find any clues to identify the murderer. The next morning, Madison was found dead. What really happened?
Answer: Madison found out that Mike was the murderer, and tried to call the police on him. Mike killed her before she could get a chance to call the police.
Source: https://www.riddles.com/7651