This natural experiment shows us that we cannot simplify what is happening in Russia by attributing it to a single person's fault. It must be a systematic phenomenon of complex nature.
With such high oil prices Russia could survive for a long time, slowly rotting away just like Italy is described in the article. Although, since Russia has already much lower quality of life, and since bringing the president or even a member of parliament to court is completely unthinkable here, we would rot down much faster.
At the same time, they did set the stage for a dramatic recovery.
You're mixing your East European assassination techniques.
Umbrella: http://en.wikipedia.org/wiki/Georgi_Markov Polonium: http://en.wikipedia.org/wiki/Poisoning_of_Alexander_Litvinen...