> Emperor Wu attributed the defeat to
#LiLing, with all government officials subsequently condemning him for it. Sima was the only person to defend Li Ling..whom he respected.
#EmperorWu interpreted Sima's defence of Li as an attack on his brother-in-law,
#LiGuangli, who had also fought against the
#Xiongnu without much success, and sentenced Sima to death. At that time, execution could be commuted either by money or castration. Since Sima did not have enough money to atone his "crime"..