叶群
In the official narrative, on September 13, 1971, Lin Biao, his wife Ye Qun, Lin Liguo, and members of his staff attempted to flee to the Soviet Union ostensibly to seek asylum. En route, Lin's plane crashed in Mongolia, killing all on board. The plane apparently ran out of fuel en route to the Soviet Union. A Soviet team investigating the incident was not able to determine the cause of the crash but hypothesized that the pilot was flying low to evade radar and misjudged the plane's altitude.