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For eight weeks in the summer of 1950,\\xa0Somebody Knows\\xa0dramatized 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,\\xa0Somebody 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.