Exclusive: Black Widow Maintains Her Innocence

Stacey Castor became a prime suspect in the murder of her second husband and the attempted murder of her own daughter. But she denies any wrongdoing, insisting that she's innocent. "I did not kill David Castor," she said in an exclusive interview with ABC News' David Muir. "And I did not try to kill my daughter, period. And I will never say that I did. Ever." In January, Stacey Castor stood before a judge and jury in the Onondaga County courthouse in Syracuse, N.Y., where she was given...Full Story