Vladimir Bukovsky has died in Cambridge. R.I.P.

I knew him personally from October, 2007, when his unsuccessful (on its formal results) presidential campaign in Russia has been started.

Garry Kasparov's article In Memoriam of Bukovsky:
This Soviet dissident knew why finding common ground with dictators can't work
https://www.washingtonpost.com/opinions/2019/10/29/this-soviet-dissident-knew-why-finding-common-ground-with-dictators-cant-work/