Retired U.S. Marine Corps Gunnery Sgt. Nick A. Popaditch, supervisor at Tesla Motors, speaks about the actions of Sgt. Walter K. Singleton during the 17th Annual Sgt. Walter K. Singleton Distinguished Lecture Series held at Warner Hall, Marine Corps Base Quantico May 8. Singleton was killed in action in Vietnam and was posthumously awarded the Medal of Honor in 1968. The lecture series is held to broaden the leadership perspective of the Corps' future leaders attending the Staff Noncommissioned Officer Academy. - Retired U.S. Marine Corps Gunnery Sgt. Nick A. Popaditch, supervisor at Tesla Motors, speaks about the actions of Sgt. Walter K. Singleton during the 17th Annual Sgt. Walter K. Singleton Distinguished Lecture Series held at Warner Hall, Marine Corps Base Quantico May 8. Singleton was killed in action in Vietnam and was posthumously awarded the Medal of Honor in 1968. The lecture series is held to broaden the leadership perspective of the Corps' future leaders attending the Staff Noncommissioned Officer Academy.