kiev ukrainian wife chechen man accuse russia plot kill president vladimir putin shoot dead outside kiev monday attack also wound husband ukrainian interior ministry officials say amina okuyeva adam osmayev car shoot bush near railway cross outskirts capital interior ministry advisors anton gerashchenko zoryan shkiryak say separate post facebook attack follow vehicle bomb kiev last thursday two people kill three wound include ihor mosiychuk member populist opposition radical party okuyeva link mosiychuk work advisory role result injuries sustain amina die adam osmayev wound live speak telephone gerashchenko say incident second attempt year life osmayev russia mainly muslim chechnya region june survive attack gunman turn shoot wound okuyeva gerashchenko shkiryak suggest motive late incident mosiychuk blame russia last week bomb ukrainian police say russian involvement one possible motives investigate russia dismiss accusations product anti-russian sentiment ukraine relations kiev moscow collapse 2014 russia seize ukraine crimea peninsula back pro-russian separatist insurgency eastern ukrainian regions russian authorities accuse osmayev part 2012 plot islamist rebel kill putin bomb central moscow osmayev okuyeva well-known figure ukraine serve volunteer ukrainian military fight pro-russian rebel moscow fight two war separatists chechnya since 1991 collapse soviet union region broadly control moscow chechens know fight pro-russian rebel ukrainian army conflict eastern ukraine since fight break east 2014 number incidents involve explosives outside conflict zone increase spate vehicle bomb past 18 months kiev capital elsewhere investigators fail find responsible wife chechen accuse putin assassination plot shoot dead near kiev