![Prof. Frank McDonough on Twitter: "7 September 1978. Bulgarian dissident Georgi Markov (aged 49), was hit in the leg walking on Waterloo Bridge, London by a pellet containing the poison ricin. It Prof. Frank McDonough on Twitter: "7 September 1978. Bulgarian dissident Georgi Markov (aged 49), was hit in the leg walking on Waterloo Bridge, London by a pellet containing the poison ricin. It](https://pbs.twimg.com/media/EhS4pw3XsAABm92.jpg)
Prof. Frank McDonough on Twitter: "7 September 1978. Bulgarian dissident Georgi Markov (aged 49), was hit in the leg walking on Waterloo Bridge, London by a pellet containing the poison ricin. It
The Spy Museum on Twitter: "The #KGB used this umbrella—modified to fire a tiny pellet filled with poison (ricin)—to assassinate dissident Georgi Markov. After a second autopsy, a pin-sized metal pellet (1.52mm
![Prime Suspect in Georgi Markov 'Umbrella Poison' Murder Tracked Down to Austria - Novinite.com - Sofia News Agency Prime Suspect in Georgi Markov 'Umbrella Poison' Murder Tracked Down to Austria - Novinite.com - Sofia News Agency](https://www.novinite.com/media/images/2013-03/photo_verybig_148935.jpg)