 He studied the historical accounts of the Han Dynasty general Dong Zhuo, and concluded that Wang Yun's failure, after he killed Dong, was in not pardoning Dong's associates and forcing them into rebellion.He therefore prepared to first kill Erzhu Rong and then declaring a general pardon.Under pretense that Empress Erzhu had given birth, he summoned Erzhu Rong and Yuan Tianmu into the palace and surprised and killed them.