Walter E. Ellis
Summary: convicted serial killer and rapist known as the Milwaukee North Side Strangler who was serving several life sentences at a South Dakota prison under an interstate agreement for the rape and murders of at least seven black women between the ages of 19 and 41 in the city of Milwaukee, Wisconsin from 1986 to 2007 and whose case exposed serious flaws in Wisconsin's process for collecting DNA from convicted felons following his arrest in 2009 after Milwaukee police said his DNA matched semen samples found on six homicide victims and a blood sample on a can of pepper spray discovered at the scene of the seventh slaying.
Cause of Death: Natural causes
Born: June 24, 1960
Died: December 1, 2013
Location: Sioux Falls, South Dakota