Re: As far as I see,
That's just a crooked cop - happening everywhere in the world.
Other than that, yes, the Russian courts are not independent at all, the judges are kowtowing to the ruling party and try to pre-empt what Putin and his cadre would like to see in the sentences.
Not unlike in the Soviet Union, anyone can go missing, have evidence fabricated against them or just be shot dead in the streets unless you do what's expected. (the shooters are somehow usually from the ex-soviet states and they'll probably die from internal injuries waiting for the trial)