Wu Han and Zang Gong crushed Gongsun Shu at Chengdu; Gongsun Shu, wounded, died that night, and Wu Han massacred the people of Chengdu. (Book of the Later Han (Hou Hanshu), Annals 後漢書卷1下 光武帝紀下 建武12年)
In the eleventh month, when Zhang Gong reached the city gate, on the day wuxu Gongsun Shu personally attacked the Han army with tens of thousands. Yan Cen won three times, but while the troops were weary, Han's Gao Wu pierced Shu's horse and unhorsed him. (Zizhi Tongjian (Comprehensive Mirror) 資治通鑑 卷043 (원문 단락 #3193, 36년))