Edited sentence: 10, 1991 -.Further investigation through informants still in  the U.Here is Helms' Letter to Yeltsin with interrogetories concerning McDonald and other possible survivors to Yeltsin, dated Dec.Here is the tracking, beginning at Lubyanka KGB Central prison, and ending with Karaganda (Kazakhstan) transit prison- through  various camps and interrogation/detention centers -.Senator Jesse Helms, while heading the minority staff of Senate Foreign Relations Committee, requested the CIA verify the information coming from Israel.This information was assessed by the Israel Research Centre for Prisons, Psych-prisons, and Forced Labor Concentration Camps of the U.Though McDonald is thought to have died with the other 269 passengers and crew of KAL 007, Russian immigrants to Israel who had been in the military (one who had been stationed at the radar station covering the flight of KAL 007) brought with them reports of a safe water ditching.Upon verification,  Helms requested information from Boris Yeltsin regarding the condition and whereabouts of Larry McDonald, as well as requesting the Soviet military communications relating to the downing and aftermath of KAL 007.Yeltsin responded with the handover of the Black Box in 1992, as well as the military communications of the shootdown, but did not comply with Helms' request for the information relating to Larry McDonald.placed McDonald in various camps and tracked up until the mid-1990's.which concluded that  McDonald was among others that had survived