Ken Landwehr, the Wichita police commander who helped solve the BTK serial-killer case and many other Wichita homicides, died Monday, January 13, 2014. Kenneth F. "Kenny," 59, husband, father, friend to many and retired Lieutenant of the Wichita Police Department Homicide Section, passed away from kidney cancer. According to his obituary, Kenny was preceded in death by his parents, Lee and Irene Landwehr of Wichita. He is survived by his wife, Cindy (Gibson) Landwehr, and son, James Landwehr, of the home; daughter, Holly Vanatta (Joel); brother, David Landwehr (Brenda); nephews, David Lee and Mark Landwehr; grandchildren, Miles and Megan Vanatta, all of Wichita, along with numerous aunts, uncles and cousins. Kenny was heavily involved in volunteering for Special Olympics, was a criminal justice instructor at Wichita State University and a trainer for the Wichita/Sedgwick County Law Enforcement Training Center. He also served on the board of S.I.D.S. of Kansas. Kenny's favorite hobbies included spending time with his family, working with his son on homework and playing golf. He was an avid golfer. Memorial donations may be made to the Ken Landwehr Memorial Fund, c/o Wichita Federal Credit Union, 9835 E. 21st St. N., Wichita, KS 67206.