Donald Rowland , pleaded guilty to first - degree involuntary manslaughter in wife Betty 's march 2014 death . three of the victim 's six grown children found her parents together in hospital , both with stab wounds . Betty Rowland , Donald 's mother of 64 years and grandmother of 13 , had had a stroke not long before her death .
Donald Rowland , pleaded guilty to first-degree involuntary manslaughter in wife Betty 's October 2014 death . One of the couple 's four grown children found her parents together in bed , both with stab wounds . Betty Rowland , Donald 's wife of 64 years and grandmother of 13 , had had a stroke not long before her killing .