HomeDiplomatic Security Service Memorial...Johnie Thomas hide Johnie Thomas U.S. Military–Other/Embassy Security Operations Deceased January 31, 1968 Sgt. Johnie B. Thomas, U.S. Army, died on January 31, 1968, defending U.S. Embassy Saigon during a Viet Cong attack. His hometown is Detroit, Michigan. Back to DSS Memorial Tags Diplomatic Security Service Memorial Vietnam