Kathleen Savio was the third wife of Drew Peterson, the husband of missing woman Stacy Peterson. In 2004, Savio was found dead in her bathtub. At the time, police said the death was an accidental drowning. Following an autopsy, her case was reopened and reclassified as a homicide.CNN.com: Death of former cop's third wife ruled a homicide (February 22, 2008)
On May 7, 2009, Drew Peterson was arrested and indicted on two counts of murder in connection to the murder of Savio. He is being held on a $20 million bond. Authorities are also considering Peterson as a suspect in the disappearance of his fourth wife, Stacy Peterson.CBSNews: Drew Peterson's Ex's Words May Haunt Him (May 8, 2009)