person. they re searching for someone who apparently fled in a white car. i can tell you from moscow tonight that there are checkpoints here by the police where the white cars are actually being stopped quite a bit here in the city. so the russians are saying that they ve got this manhunt under way and vladimir putin came out and said he said that this bears all the hallmarks of a targeted contract killing which he believes is meant for a provocation job. targeted contract killing certainly does not sound random. fred nemtsov, not just an opposition leader. this man is a former deputy prime minister. a high level official in the russian government well known across the country and he was just assassinated essentially. reporter: absolutely. he wasn t only a high-level russian politician but someone who after he left active politics became an opposition figure and was very much a critic of vladimir putin. he s been jailed several times.