"Uncle? Cai Xiangbin?" Captain Dou was so surprised that he asked Zhao Yu immediately, "Leader Zhao, what is this all about? I'm confused!"
"I knew there must be something between them." Zhao Yu didn't give him a direct reply.
Zeng Ke said, "Cai Jinda's father is Cai Xiangbin's brother! There are four brothers in their family. Cai Xiangbin is the youngest, while Cai Jinda's father is the eldest."
Captain Dou seemed to have recovered from his shock and hurried to ask, "Do you think Cai Jinda is the murderer? But... Why?"
"That's also my question. Although Cai Jinda clearly had something to do with it, it still doesn't make total sense!" Zeng Ke shook his head, then said, "Let's say Cai Jinda planned to use the film to prove his uncle's innocence... Then, there'd be no reason for him to kill anyone."
Zhao Yu also felt that Cai Jinda had no reason to kill anyone, even though he was related to the sailor.