The implication being that Ukrainian intelligence was responsible?
Dunno. They typically use car bombs or guns to take out targets but I’m not even sure why they’d target him. He has no influence anymore whatsoever. I suspect it might’ve been a warning from the Kreml.
In 2013, he came out as gay, criticized an “Anti-homosexual propaganda” law and wrote an article for The Guardian, denouncing homophobia in Russia. In the last few years, he has supported laws banning LGBT propaganda and has had to apologize numerous times for sayng things that are so unhinged, that even the Russian media has called them “disgusting”. Anyone interested can take a look at the “2022 Russian invasion of Ukraine” section of his Wikipedia page. It contains gems, such as " drown the children" and “final solution”
I always wondered if he went full extremist deliberately to get kicked out of his position.