the russians don't want to extradite any suspects and anyone found guilty will be tried in russia...
i'm not particularly sure how international legal jurisdiction works but in Scots law you're tried under the jurisidiction that the crime is commited i.e. i'd get done in edinburgh if i commited a crime there and whoever done this (russian or not) should be tried in Britain as the crime was perpetrated on British soil.
http://othernews.uk.myway.com/articl...65292859A.html