Sidney Reilly, nicknamed the 'Ace of Spies,' planned to kill the whole of the Soviet leadership during a meeting at the Bolshoi Theatre in 1918 An MI6 agent became a serial killer as he used pretty young women to lure Russians to their deaths with the promise of sex, new documents reveal. A Cossack colonel called Mohammed Bek Hadji Lashet, and his gang used the women to attract communists to a lakeside villa where they were tortured and then killed, according to a new history of the intelligence service. The book, Six, by former military intelligence officer Michael Smith, reveals...