Sheng Shicai
On September 17, 1942, Mao Zemin along with fellow communist Chen Tanqiu was arrested by the warlord Sheng Shicai, who had been working closely with the Soviet Union but then turned against them. In prison, Sheng Shicai used torture to force Zemin to confess to a Communist Party of China plot against the government and to force him to quit the Communist Party. He refused to yield and was executed.