Thomas Peterson was 11 when his mother, Kathleen Savio, was found drowned in a dry bathtub in March 2004. He was 14 when his stepmother, Stacy Peterson, mysteriously vanished in October 2007. Thomas Peterson was called before the grand jury investigating what befell both women. He later went on television to proclaim "he highly did not believe" his father killed his mother. Two weeks after the interview Drew Peterson was arrested and charged with Savio's murder.