This week a group of families of the MH17 victims wrote an open letter to the Russian people before the World Cup begins next month. The JIT stopped short of saying it believed the BUK system was deployed as part of a Russian military mission, saying only that they had identified the base from which it came. If specific Russian military personnel or commanders are indicted, Russia is almost certain to refuse their extradition. Your Ukraine plane crash did not match any documents. Ininvestigators announced they had evidence that the BUK system involved in the incident had crossed the border into eastern Ukraine plane crash from Russia and returned after the plane had been shot down. InRussian troops and hardware were introduced at Ukraine plane crash moments to back pro-Russia separatists fighting against Ukrainian government troops.