Marvel Mystery Comics #80

A music publisher sees his chance to knock off his partners and pin the blame onto a singer named Celment he also framed years ago for a theft when the singer's time is up and he's released from jail. The killer sends death threats along with records of Clement's songs giving clues as to where the murder will take place. He manages to stay one step ahead of Torch and Toro to pull off his murders, but once they escape from his death trap, he confesses all and clears Clement's name.