That filmmaker was anti-Putin and he still lives in Russia? Totally believable.
You can use google translate to read this:
https://www.novayagazeta.ru/articles/2018/10/22/78289-povar-...
TL;DR version: Small time regional bloggers disappear and the "executioners" are then erased themselves.
This is one of the very few newspapers left in Russia which does this kind of investigative journalism, they get death threats regularly.
EDIT: Spelling.