an investigative committee said at the time it was a contract order committed by an organized group. we asked sara mendelson and other russia experts the question on many s mind today. is it fair to call vladimir putin a killerer? he doesn t necessarily pull the trigger. he has enabled a system where people have killed. investigative journalist was digging up investigation on russian war crimes in chechnya when she was shot and killed in her apartment complex. the accused killer was convicted. but the mastermind never was caught. the 2006 death of former russian intelligence agent, alexander, he had been digging up information. in oy cold war-style assassination, poll ownum was in his tea. there was tongues of evidence and on the basis of that