Webjul 23, 2009 · joliet, ill. (cbs/ap) kathleen savio, the third wife of former police officer drew peterson, struggled with her killer, a pathologist concluded in autopsy notes. Websep 5, 2012 · peterson's third wife, kathleen savio, was found dead in her bathtub in 2004, and her death was initially ruled an accident. However, after peterson's fourth wife,.