intelligence believed in 2016 that suspected Kremlin-ordered assassinations abroad would likely persist. The document includes well-known cases, such as the murder of Alexander Litvinenko, a former FSB agent who defected to the U.K. Litvinenko accused Putin's regime of a number of crimes, including that the FSB was allegedly behind the 1999 bombings of apartment buildings in Moscow and other Russian cities that were originally blamed on Chechen rebels. Among other things, he also said Putin and his circle had ties to organized crime.Litvinenko died of radiation poisoning in 2006 and blamed Putin before his death. British intelligence concluded that Russia likely carried out the assassination, according to the U.S. intelligence memorandum.The document also lists former Ukrainian President Viktor Yushchenko, who was poisoned on the campaign trail during the 2004 presidential election, leaving his face temporarily disfigured.