Salisbury’s former spy is not the first Russian to fall ill in Britain in mysterious circumstances
Georgi Markov, September 1978
In one of the most chilling episodes of the cold war, the Bulgarian dissident was poisoned by a specially adapted umbrella on Waterloo Bridge. As he waited for a bus, Markov felt a sharp prick in his leg. The opposition activist, who was an irritant to the authoritarian communist government of Bulgaria, died three days later. A deadly 1.7mm-wide pellet containing the poison ricin was found in his skin. His unknown assassin is thought to have been from the secret services in Bulgaria, which was then in the orbit of Soviet Russia.
Link : Poisoned umbrellas and polonium: Russian-linked UK deaths