VLADIMIR Putin’s KGB spy mentor who was demoted for publicly criticising the tyrant has died of an unexplained “disease”.
Viktor Cherkesov is the latest of Putin’s cronies to die in mysterious circumstances this year.
Ruthless Cherkesov, 72, was once in charge of crushing Soviet dissidents and was seen as crucial to Putin’s rise to power before the pair’s relations became strained.
When Putin headed the FSB secret service before becoming prime minister, Cherkesov was installed as his trusted deputy.
Earlier he had been in charge of law and order in St Petersburg when it became Russia’s “criminal capital” with a record for countless unsolved contract killings.