Cops killed Politkovskaya?

The Russian media has pondered the question Who killed Anna Politkovskaya? since she was murdered. The Russian newspaper Kommersant claims two former policemen are responsible. The motive? Revenge. Politkovskaya wrote that the two cops were involved in the murder on at least one civilian. That´s okay then! Solve one murder with another! How clever! They must fell oh soo smart!