For eight weeks in the summer of 1950, Somebody Knows dramatized unsolved murder cases with the goal of solving the crimes. A reward of five thousand dollars awaited any listener who had evidence that could lead to the capture and conviction of the killer. Hosted and directed by Jack Johnstone, Somebody Knows boasted a cast of veteran radio players in its dramatic true crime recreations. We'll hear "The Unsolved Murder of Elizabeth Short - The Black Dahlia," originally aired on CBS on August 24, 1950.