Dateline NBC

Obsession (2009); Murder in the Family (17x72)

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No One could figure out why a college student died in her bed - until a tiny spot launched an epic investigation. Also, Dennis Murphy investigates the case of Maggie Locascio, a woman who was about to escape from her overpowering husband and begin a new life. But suddenly her life was cut short. The case saw a son versus his father in deciding who was responsible for the murder.