From Rocklopedia Fakebandica
The Cajun Man, he is possessed/haunted/badgered by the dead man's spirit. Given a supernatural boost in the talent department, Gletz goes from "Unheard of six months ago, and now leader of the greatest band in the country!"
But he has to murder to keep the The Cajun Man's spirit happy and the talent flowing. He finally gets caught and hanged.
The plot is suspiciously similar to an earlier story, "Death Drum," in comic book Adventures into Darkness #7 (December 1952).