A man, was found dead, with a cassette recorder, in one hand, and a gun, in his other hand.When the police came in, they immediately pressed the play button on the cassette.They heard that, the man says, “I have nothing else, to live for. I can't go on anymore. Then there was the sound of a gunshot.After listening to the cassette tape, the police knew that it was not a suicide, but a homicide. How did they understand the matter?Have you any guess? Think for a while, and check out the comment box, if your guess was correct, or not. Please, subscribe our channel for more riddles.