Giles and Sarah’s Russian fixer, Masha, finds a remarkable video interview with a former KGB diver, Eduard Koltsov – the last person to see Lionel Crabb on the day of his secret dive. His deathbed confession is graphic, shocking and believable. But can he be trusted? Subscribe to The Binge to get all episodes of Cover Up: Ministry of Secrets ad-free right now. Click "Subscribe" at the top of the Cover Up show page on Apple Podcasts or visit GetTheBinge.com to get access wherever you get your podcasts. A Sony Music Entertainment production. Find more great podcasts from Sony Music Entertainment at sonymusic.com/podcasts and follow us @sonypodcasts. Show notes: Eduard Koltsov interview, 2007 - Ren TV Lord Mountbatten interview, 1969 - Fremantle Death of Princess Diana announcement, 1997 - BBC Motion Gallery/Getty Images Operation Paget Press Conference, 2006 - BBC News John Randall interview, 1957 - BBC Motion Gallery/Getty Images HC Deb, The Case of Commander Crabb, 14 May 1956, Vol 552.  Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Newspaper headlines: The Independent, 21 December 2003 The Guardian, 20 October 2003 The Herald Sun, May 27 2019 The Independent, 31 May 2017 The Daily Record, 31 August 2022 The Daily Express, 18 June 2007 The Daily Mirror, 15 May 1956 Learn more about your ad choices. Visit podcastchoices.com/adchoices