Chen Xiao seemed to be just talking and didn't have Qin Fei reach out to Yuan Keyu's close family and colleagues.
The latter had somehow found a small blackboard and chalk.
Seeing this, Chen Xiao and Qin Fei began analyzing and taking notes in the room.
"Sang Xiaoming is currently in Zhushan City, attending Zhushan Third Middle School. His social circle includes family, teachers, and classmates."
"Of course, we don't know much about Sang Xiaoming yet; he may have some broader social connections, which we'll temporarily represent with symbols."
"First, concerning Sang Xiaoming's family, we've met Sang Yupeng, but we haven't met his mother, Zhou Lu."
"According to Sang Yupeng, Zhou Lu has also been in Zhushan City accompanying the study, and she hasn't been working regularly. So, when questioning Sang Xiaoming, the task force might have also questioned Zhou Lu."
