DNA trail leads to arrest in Wisconsin serial killings Posted byadmin September 8, 2009 Using “shoe leather and science,” police in Milwaukee, Wisconsin, have arrested a suspect in the serial killings of nine women over 21 years. Related posts: DNA leads to suspect in 1970s Los Angeles serial killings Teen charged in Miami’s 19 serial cat killings More arrests in N. Ireland over killings Pet’s death linked to Miami’s serial cat killer Police hunt ‘Grim Sleeper’ serial killer