Drew Peterson pleads not guilty to 3rd wife's murder

Drew Peterson pleaded not guilty Monday to a charge of first-degree murder in the death of his third wife, Kathleen Savio.... Investigators have named Peterson as a suspect in the disappearance of his fourth wife, Stacy Peterson. His third wife's death was originally deemed an accident, but after the case of the fourth wife sparked new questions, Savio's body was exhumed and a grand jury indicted Peterson this month on a charge of first-degree murder in her death.