At the end of the Eastern Han Dynasty, after the death of Emperor Han Ling, the power of state affairs was in Dong Zhuo's hands. Dong Zhuo not only makes trouble everywhere in Beijing, but also often makes trouble in national affairs. At that time, there were many people who crusaded against Dong Zhuo, and Sun Jian was one of them. After Dong Zhuo took control of state affairs, it became the biggest obstacle to the development of the Han Dynasty. Moreover, Dong Zhuo not only harmed officials and people everywhere, but also excavated the tomb of Emperor Wu of the Han Dynasty for his own benefit, and also pulled out the body of Emperor Wu of the Han Dynasty, which made the nobles of the Han Dynasty very angry. Gradually, Dong Zhuo was hated by the world for his atrocities.
In the process of crusade against Dong Zhuo, Sun Jian also killed Jingzhou secretariat conveniently, because Jingzhou secretariat was very rude to Sun Jian, and then Sun Jian led the army to Nanyang. After Liu Zi, the prefect of Nanyang, learned, he didn't panic at all, just like a calm person. After Sun Jian arrived in Nanyang, he sent a lot of wine and meat to Zhang Zi, the magistrate of Nanyang. Zhang Zi took the initiative to go to Sun Jian military camp to thank him.
However, Zhang Zi was killed by Sun Jian after he arrived at Sun Jian military camp. After Zhang Zi entered the military camp in Sun Jian, he was invited by Sun Jian to have dinner together. As a result, at the banquet, Sun Jian suddenly found Zhang Zi guilty. Sun Jian thought he had brought an army to Nanyang. Zhang Zi and others not only failed to pave the way for their own troops, but also failed to prepare materials for them. Therefore, they were very angry and ordered to kill Zhang Zi. After Zhang Zi's death, Nanyang officials and people were afraid of themselves and had to agree to all Sun Jian's demands.