e/Alexander Litvinenko assassination theories

Information
has gloss	eng: Several theories on the assassination of Alexander Litvinenko were circulated following his death from polonium poisoning in November 2006. Alexander Litvinenko was a former officer of Russian Federal Security Service, who escaped prosecution in Russia and received a political asylum in Great Britain. He authored two books, Blowing up Russia: Terror from within and Lubyanka Criminal Group, where he accused Russian secret services of staging Russian apartment bombings and other terrorism acts to bring Vladimir Putin to power. On November 1, 2006, Litvinenko suddenly fell ill and was hospitalized. He died three weeks later, becoming the first known victim of lethal polonium-210-induced acute radiation syndrome. According to doctors, "Litvinenkos murder represents an ominous landmark: the beginning of an era of nuclear terrorism". Litvinenkos allegations about the misdeeds of the Federal Security Service of Russia (FSB) and his public deathbed accusations that the Russian government was behind his unusual malady resulted in worldwide media coverage.
lexicalization	eng: Alexander litvinenko assassination theories
instance of	(noun) a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor Po, atomic number 84, polonium