Who killed Guan Yu?

In the 24th year of Jian 'an of Emperor Xian of Han Dynasty (AD 2 19), it was in November of that year that Lu Meng led his army out of Tibet and entered Xunyang (now northeast of Guangji, Hubei). He ambushed the elite soldiers in a disguised merchant ship, dressed the soldiers in white, disguised as businessmen, raised the people to paddle and paddle, sailed back to the river day and night, and attacked Jiangling. Everything was easy. Lv Meng knew Guan Yu and serenade, and expected that he would flee to the north via Maicheng, so he sent his troops in advance and buried him. In December, Sun Quan sent messengers to Maicheng to persuade Guan Yu to surrender. Guan Yu suggested that Wu Jun retreat ten miles and meet at the south gate. Lv Meng really retreated ten miles, waiting for Guan Yu to surrender. Guan Yu and his eldest son Guan Ping sneaked out of the north gate and fled to the west with a dozen cavalry. Captured by Pan Zhang general Ma Zhong, he is bound to see Sun Quan. Sun Quan surrendered to Guan Yu, who was killed by Pan Zhang and his son Guan Ping in Linzhou. He died at the age of 58, and his second son, Guan Xingsi, was named "Han Shou Ting Hou". In the third year of Jing Yao (A.D. 260), Liu Chan, Emperor Huai of Shu, made Guan Yu "the Queen of Qianghe Temple".