A 57 year old Knox man accused of killing his estranged wife has been charged with her death. Starke County Prosecutors have charged Gary Chavez with murder, kidnapping and car jacking for the events that took place last week on Friday, which ultimately led to him shooting himself following a high-speed pursuit. Authorities in Porter County have already charged him with one-count of carjacking. Chavez remains hospitalized in Illinois. 50 year old Kimberly Chavez was found dead in his home.