Wu Guang
After Chen Sheng set up his capital at Chen County (陳縣; in present-day Huaiyang, Henan), he appointed Wu Guang as acting-'King of Chu' and ordered Wu to head west toward Qin proper. Wu Guang's forces, however, became bogged down while laying siege to Xingyang (滎陽; northeast of present-day Xingyang, Henan). Wu Guang's generals became concerned that Qin reinforcements under Zhang Han would soon arrive and attack them on two sides. They wanted to change Wu Guang's plans, end the siege of Xingyang, and face Zhang Han's forces directly. Unconvinced that Wu Guang would change his plans, they assassinated Wu and took over the army.