At 4:00PM, Xu Xiaodong was sitting in the interrogation room. The interrogator was from the third team and asked him, "Xu Xiaodong, how did you know the victim?"

"How did she die? She was still fine last night. If you don’t let me know anything, how can I answer your questions?" Xu Xiaodong was completely confused, but vaguely understood that Li Mengran had been killed.

The interrogator knocked on the table. "You are a police officer. You should know the interrogation process. We can’t tell you the details of the case. You’re the person being questioned right now. Tell us what you know."

"I didn't kill anyone!"

"It's up to us to decide whether you killed or not."

"I really didn’t kill anyone! Bring out the polygraph, I'll show you!"

"Answer the question!"

Xu Xiaodong reluctantly glanced at the one-sided mirror. Li Mengran's...