You Be The Detective
Thanks Annika

A woman was found dead in her den. She was slumped over on her desk, holding a gun was in her hand. A cassette tape recorder was on her desk. When the police entered the room, they pressed the play button on the tape recorder. This is the message they heard : "I can't go on. I have nothing to live for." Then the sound of a gun shot was heard. Question :  How did the police immediately determine that the woman had been murdered and had not committed suicide? See answer