James Stevens James Stevens ( born 22 November 1945 G . M . T . , or 23 November New Zealand time ) was the author of the book " Who Killed Kennedy " . The book chronicled Stevens ' attempts to learn more of the secretive organisation known as UNIT . Biography . Born less than three months after the end of World War II , he was the illegitimate son of an America n GI stationed in New Zealand and a seventeen - year - old girl from one of Auckland ' s wealthiest and most influential families . His father refused to acknowledge his responsibilities and accused his mother of being a whore . He went off to war and was killed by friendly fire two weeks later . Stevens was put up for adoption immediately after he was born . As a child , an interest in rugby was drilled into him . On his 18th birthday , 22 November 1963 , John F . Kennedy was assassinated in Dallas , Texas . After JFK ' s death , he became obsessed with finding out about the man . This passionate search for the truth led him into journalism . On his 21st birthday , his foster parents told him that he was adopted . Years later , he went to meet his mother , but left again , realising that she had no love for him . Soon after , he left New Zealand for Britain . He arrived on Fleet Street and soon found work at the " Daily Chronicle " , a local newspaper . He discovered that his immigration was questionable , and that he needed a British wife soon . Just to mess with the royalty , he married Natasha Howarth , the daughter of Lord Howarth . It was a well known wedding , and they even got a Beatle to attend and appear in a photo with them , making it a front page story . While working at the paper , Stevens discovered and found himself obsessed with UNIT , " Dr . John Smith " and a history of alien intervention in human affairs dating back at least to the ULTIMA Incident in 1943 , believing from available information that UNIT were a shadow organisation with an ill - defined agenda . He met Dodo Chaplet , a mentally broken erstwhile companion of the Doctor in his first incarnation . They developed a romantic relationship until she was killed by one of the Master ' s agents ; the Master had been the source of most of Stevens ' information in an attempt to create trouble for UNIT , but killed Dodo to break Stevens after his investigation threatened to expose the Master ' s own scheme . At her funeral , Stevens briefly met the Doctor himself — though it remains unclear as to whether the Doctor whom he met was the Second or the Seventh Doctor . Emotionally shattered at Dodo ' s death , Stevens set out to confront UNIT at Auderly House , but the sight of an Ogron forced him to recognise that UNIT ' s true agenda was benevolent and they had only kept the truth secret because nobody would believe it . Having travelled to Dealey Plaza on 22 November 1963 to witness the Kennedy assassination , Stevens had seen his own older self shoot Kennedy . He remained haunted by the knowledge ; to ensure that history kept to its proper course , Stevens knew that he must eventually return to that time and place to kill Kennedy . ( PROSE : " Who Killed Kennedy " ) Before leaving the present to commit the assassination of Kennedy , Stevens mentored Ruby Duvall , a young aspiring journalist , and Sarah Jane Smith , the latter of whom would become a companion of the Third and Fourth Doctor s . ( PROSE : " Who Killed Kennedy " ) Ruby later fought the Cybermen in Antarctica in 2006 with the Seventh Doctor . ( PROSE : " Iceberg " ) Stevens disappeared in April 1996 , having travelled back in time to 1963 . ( PROSE : " Who Killed Kennedy " , " The Dying Days " )