David Smith, ex-husband of South Carolina killer mom Susan Smith, has revealed what his ex-wife said to him after she drowned their two sons in a new 'Dateline' episode.

South Carolina killer mom Susan Smith, who drowned her two sons, is reportedly acting like a "complete nightmare" behind bars, months after she was denied parole.

Smith’s ex-husband speaks out in two-hour broadcast about her recent parole hearing, tells ‘Dateline’ he ‘wanted an eye for an eye’ after she drowned their two sons. Airs Friday, February 14 at 9/8c ...

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