HONG KONG -- Sept. 13 marks the 50th anniversary of the mysterious death of Lin Biao, who at the time was Chairman Mao Zedong's designated heir. Even after half a century, it remains one of the biggest enigmas of Chinese Communist Party history.
Yu Ruxin takes a fresh look at the death of Mao's former designated heir Lin Biao

The plane in which Lin Biao tried to escape to the Siberian city of Irkutsk crashed in the eastern Mongolian desert on Sept. 13, 1971. All nine on board were killed, including Lin Biao's wife, son and close aides. (Photo courtesy of Yu Ruxin and New Century Press)
HONG KONG -- Sept. 13 marks the 50th anniversary of the mysterious death of Lin Biao, who at the time was Chairman Mao Zedong's designated heir. Even after half a century, it remains one of the biggest enigmas of Chinese Communist Party history.