Boris Nemtsov pictured in a radio station 's studio just hours before death . Opposition leader was being interviewed to promote anti-Kremlin protests . He was seen talking animatedly on his phone before going on air . Mr Nemtsov was shot dead in a 'contract hit ' as he crossed Russia bridge . Footage appears to show killer on foot before making a getaway in a car . Rally Mr Nemtsov organised will today be used to protest his murder . Critics claim Nemtsov was shot after publicly condemning Vladimir Putin . Ukrainian President fingered the Kremlin as the culprits behind his death .
Boris Nemtsov pictured in a radio station 's studio just hours before death . Opposition leader was being interviewed to promote anti-Kremlin protests . He was seen talking animatedly on his phone before going on air . Mr Nemtsov was shot dead in a 'contract hit ' as he crossed Moscow bridge . Footage appears to show killer on foot before making a getaway in a car . Rally Mr Nemtsov organised will today be used to protest his murder . Critics claim Nemtsov was shot after publicly condemning Vladimir Putin . Ukrainian President fingered the Kremlin as the culprits behind his death .