Part 1 of two on the ""Son of Sam"" killings explores the theory that David Berkowitz may have been a suspected scapegoat in the 1970's New York slayings. Also: the unclaimed inheritance of a Nebraska railroad man who died in 1978; and clues left behind in the 1985 shootings of a Waverly, Ga., couple.
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Ready to Watch Unsolved Mysteries, Season 1, Episode 4?