Initially a journalist , he joined ITN in 1963 , covering such topics as the Great Train Robbery , Vietnam War , The Troubles , the Munich Olympics massacre , Germany 's Red Army Faction , Italy 's Red Brigades and Palestinian militant groups . His first book , '' Harry 's Game '' , was published in 1975 , and Seymour then became a full-time novelist , living in the West Country . In 1999 , he featured in the Oscar-winning documentary , '' One Day in September '' , which portrayed the Munich massacre . He has been a full-time writer since 1978
Munich Olympics massacre
Munich massacre
Gerald Seymour