New Castle's Kadunce Murders: Mystery and the Devil in Northwest Pennsylvania

In the summer of 1978, a mother and her four—year—old were stabbed to death in the quiet town of New Castle. Police suspected the husband, Lou Kadunce, but were unable to find either a weapon or a motive. Sitting in a Lawrence County jail in 1981, convicted serial killer Michael Atkinson accused Frank Costal — a carny, petty thief and Satanist — of having an affair with the Kadunce husba...