The BBC reported that Right Sector forces and others like them were quite instrumental in the overthrow of the former gov’t and quite violent in doing so. From what I have heard, quite e few of those attacked and possibly killed were cops.
There was no “over throw”. It was a parliamentary vote which replaced the Russian oligarchs who had fled back to Russia with their loot after they ordered the execution of Ukrainian protesters.
After the previous government had murdered dozens of unarmed, actual protestors.
Sorry, BBC guy.