All members of the Gang of Four have since died ; Jiang Qing committed suicide in 1991 , Wang Hongwen died in 1992 , and Yao Wenyuan and Zhang Chunqiao died in 2005 , having been released from prison in 1996 and 1998 respectively .
Jiang Qing committed suicide in 1991 , Wang Hongwen died in 1992 . Yao Wenyuan and Zhang Chunqiao died in 2005 : they had been released from prison in 1996 and 1998 respectively .