When he was 11 years old, Collier Landry's father murdered his mother. When he was 12 years old, Collier testified in court, helping to convict and sentence his father to 20-years-to-life for the crime. Now almost three decades later, Collier returns to his hometown - and the home where it happened - for the Cleveland premiere of a documentary about his experience.

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Click here for more information about "A Murder in Mansfield."

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