Alexander Litvinenko, November 2006The fatal poisoning of the former officer with the Russian spy agency FSB sparked a major international incident. UK counter-terror police investigate Russian spy mystery Read moreGerman Gorbuntsov, March 2012The exiled Russian banker survived an attempt on his life as he got out of a cab in east London. Before his death, Perepilichnyy was helping a specialist investment firm uncover a $230m Russian money-laundering operation, a pre-inquest hearing was told. Hermitage Capital Management claimed that Perepilichnyy could have been deliberately killed for helping it uncover the scam involving Russian officials. He may have eaten a popular Russian dish containing the herb sorrel on the day of his death, which could have been poisoned.

Source: The Guardian March 06, 2018 09:13 UTC