The assassination Killing of Boris Nemtsov , a Russian politician opposed Agree_or_refuse_to_act to the government of Vladimir Putin , happened Presence in central Moscow on Bolshoy Moskvoretsky Bridge at 23:31 local time on 27 February 2015 .

An unknown assailant fired Use_firearm seven or eight shots from a Makarov pistol ; four of them hit Bodily_harm Boris Nemtsov in the head , heart , liver and stomach , killing Killing him almost instantly .

Nemtsov 's Ukrainian partner Anna Duritskaya survived the attack Attack as its sole eyewitness .