Usmanov is definitely a scoundrel, but at the moment he is our scoundrel. So that dude, Craig Murray, has never heard that sometimes even the criminals can be quite handy? As in:

It was Usmanov who engineered the 2005 diplomatic reversal in which the United States was kicked out of its airbase in Uzbekistan and Gazprom took over the country's natural gas assets.

What a thug, indeed! Oversmarted truly democratic Dubya and Blair - and now how to bring democracy to them wild and unwashed asians and arabs without having new military bases in their countries and  their natural gas assets?  Now poor Uzbeks will have to wait for getting Iraqy-style democracy for ages!

And, of course, Sargon is right. There's no traces of any Piotr Jastrzebski. Sergey Jastrzhembski, however, did study with Usmanov at Moscow State Institute for International Relations (the top level diplomatic university) but when on earth was a Brit, especially a British diplomat, able to get anything right?