New information turned up during the investigation also raised questions about the death of Peterson 's third wife , Kathleen Savio , which was ruled an accident by a coroner 's jury , Glasgow said . NEW : Judge signs order to burn the body of Drew Peterson 's third wife . Peterson has said he believed his fourth wife left him for another man . Monday : Case shifts from a missing persons case to a potential homicide . Friends and family : Stacy Peterson expressed concerns about her husband .
NEW : Judge signs order to burn the body of Drew Peterson 's third wife . Peterson has said he believed his fourth wife left him for another man . Monday : Case shifts from a missing persons case to a potential homicide . Friends and family : Stacy Peterson expressed concerns about her husband .