Basic Details Surname O'Neill Forenames Terence Gavin Gender Male Information stated on memorial War Northern Ireland Conflict; The Troubles (1969-1998) Served or died Died Service number 24139535 Primary Service As stated on memorial Service (Primary - Stated) Army (British) Unit (Primary - Stated) Royal Regiment Fusiliers Sub-unit (Primary - Stated) Not Stated on Memorial Rank / Title (Primary - Stated) Cpl. Our References Service (Primary - Our reference) British Army Rank / Title (Primary - Our reference) Corporal Death and Burial details Country of death Northern Ireland Town of death Belfast Year of death 1991 Month of death May Day of death 25 Age at death 44 Manner of death reference Killed in Action