An exiled Russian critic of Vladimir Putin was murdered by a Kremlin-backed assassin and British authorities know who did it, his friend claims.
Nikolai Glushkov, 68, was strangled with a dog lead at his home in New Malden, South West London, in March 2018 by a hitman who tried to make the attack look like suicide.
Yuli Dubov, the last surviving member of a group of Putin critics in the UK, says his friend knew his killer.
