Two men who allegedly poisoned a Russian dissident in London with a radioactive substance in 2006 left a “radioactive trail” across the city, an ongoing inquiry into the killing heard Wednesday.
Andrei Lugovoi and Dmitry Kovtun are suspected of killing Alexander Litvinenko, a former member of the country's FSB security service (once known as the KGB), who had written books and articles that accused the Russian government of criminal behavior.
from International Business Times http://www.ibtimes.com/alexander-litvinenko-death-purported-assassins-left-radioactive-trail-across-london-1813742
