Basic Details Surname Stephens Forenames Seth Vincent Gender Male Information stated on memorial War Afghanistan (2001-2014) Served or died Died Primary Service As stated on memorial Service (Primary - Stated) Royal Navy Unit (Primary - Stated) Royal Marines Sub-unit (Primary - Stated) Special Boat Service Rank / Title (Primary - Stated) Cpl. Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) Royal Marines Rank / Title (Primary - Our reference) Corporal Death and Burial details Country of death Afghanistan Year of death 2010 Manner of death reference Killed in Action