A 54-year-old Sturtevant man’s plea of no contest to second degree homicide charges doesn’t appear to sway Rock County Judge Michael Haakenson during sentencing. Haakenson sentenced Keith M. Abbott to 35-years behind bars Tuesday, describing the 2011 stabbing death of Kristin Miller as brutal. Abbott had previously been found incompetent to stand trial, suffering a variety of mental problems since the time of the crime. A criminal complaint says Abbott and Miller were having an affair and she threatened to tell his wife. Her stripped body, wrapped in plastic, was found in a ravine in southwestern Rock County.