Captain Williams was the pilot of a F-51D Mustang night fighter with the 40th Fighter-Interceptor Squadron, 35th Fighter-Interceptor Group. On 30 March 1951, while on a combat mission, his aircraft received a direct hit by anti-aircraft fire, crashed into a dike on the beach and burst into flames. He was presumed dead on 3 March 1952 His remains were not recovered. His name is inscribed on the Courts of the Missing at the Honolulu Memorial.

Williams was awarded the Air Medal with 7 Oak Leaf Clusters, the Purple Heart, the Korean Service Medal, the United Nations Service Medal, the National Defense Service Medal, the Korean Presidential Unit Citation and the Republic of Korea War Service Medal.