Ken Landwehr en Retired Wichita Police Lt. Ken Landwehr Has Died At 59 <p>Retired Wichita police Lt. Ken Landwehr <a href="">has died at the age of 59.</a></p><p>Landwehr supervised more than 600 homicide investigations during his career.</p><p>Police Chief Norman Williams says Landwehr had kidney cancer and died Monday in his home.</p><p>Landwehr retired in 2012 after a 35-year career with the Wichita Police Department.</p><p>He is credited with breaking the BTK serial killer case.</p> Tue, 14 Jan 2014 15:30:16 +0000 Associated Press 28880 at