28 years ago, the person who killed Jiamo had wiped clean all of the evidence. Even when Zhan Lichuan hacked into the satellite, he still couldn't find anything that was useful.
This was the only way that they could investigate.
They did not need evidence nor had to confront these people. All they had to do was avenge their parents, who had died.
On the other end, Du Yanzheng was still on the call with his younger brother.
At this point, being on the phone with his younger brother had become the thing that he enjoyed most.
As for Zhan Lichuan, his arm was hurting from holding onto the phone. Plus, his brother would always talk about random things. It would start with one thing and then he would move onto another without stopping. He felt that his brother was not only like a father, he was also acting like his mother. Du Yanzheng was always nagging him like a mother.