Susan Smith, 20 years after drowning sons: ‘I am not the monster’

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The story of Susan Smith, the South Carolina mother convicted 20 years ago of murdering her two young sons by drowning them in a lake, captivated the country in the mid ’90s. Now Smith is giving her side of the story in a letter to a newspaper reporter from her jail cell, saying “I am not the monster society thinks I am. I am far from it. Something went very wrong that night.” NBC’s Stephanie Gosk reports.