Cai Hai's brother, Cai Yang, who is five years younger than Cai Hai, learned about the incident from an agent who had escaped on the day of the incident. Although younger than Cai Hai, Cai Yang held a higher position, as he was not just an ordinary police officer but the captain of a deputy-provincial level special police squad. Unlike Cai Hai, Cai Yang was formally trained, and he was a person who fought to the death on missions; he had been awarded two national first-class merits and more than ten second-class merits, equivalent to a Captain in the military region.
Cai Hai's position as a detective also owed some credit to Cai Yang's influence. The brothers had been close since childhood. Cai Hai's death had infuriated Cai Yang, who personally commanded the provincial special police team to station in Bazhou City, vowing not to withdraw until the person who killed Cai Hai was captured.
