Radical Ukrainian nationalist leader Oleksandr Muzychko was killed Monday morning . Followers hailed him as a national hero and a Robin Hood for Ukrainians . Paramilitary activity under Muzychko sparked the alarm of Russia 's Vladimir Putin . `` Right Sector is a nationalistic organization . Putin says he fears these ` ` fascists '' will attack ethnic - Russians living in Ukraine .
Radical Ukrainian nationalist leader Oleksandr Muzychko was killed Monday morning . Followers hailed him as a national hero and a Robin Hood for Ukrainians . Paramilitary activity under Muzychko sparked the alarm of Russia 's Vladimir Putin . Putin says he fears these ` ` fascists '' will attack ethnic - Russians living in Ukraine .