Prime suspect in Georgi Markov ‘umbrella poison’ murder tracked down to Austria – Telegraph
17 Feb 2017 Leave a comment
Alexander Litvinenko: the man who solved his own murder | Luke Harding | World news | The Guardian
17 Feb 2017 Leave a comment
https://www.theguardian.com/world/2016/jan/19/alexander-litvinenko-the-man-who-solved-his-own-murder
Expert who investigated Alexander Litvinenko death ‘killed himself after Russia trip’ | Daily Mail Online
17 Feb 2017 Leave a comment