Karl D. Klein, of O'Fallon, Missouri, died on Monday, June 8, 2009 at the age of 58. Beloved husband of Laura Klein; dear son of the late Karl F. and the late Rosallee E. Klein; cherished brother of Diane (Rick) Dreman and Michelle (Mike) Walker; dear uncle to many nieces and nephews. Karl retired from Boeing in June of 2008 after 30 years of service as an engineer.