Mark Luken, an engraver at West River Monument Company, removes a stencil on a memorial monument in Rapid City, S.D., Oct. 18, 2016. This monument was donated by the Rapid City Chamber of Commerce in honor of Special Agent Peter Taub, an Air Force Office of Special Investigations agent who was killed in action near Bagram Airfield, Afghanistan Dec. 21, 2015. (U.S. Air Force photo by Senior Airman Rebecca Imwalle)