C129 One investigation

Chu Tiannan gritted his teeth as he endured the pain on his head and said to me, enunciating word by word, "When we were investigating earlier, we only heard that there was a suspect in the paper bag factory that we sent out. And then we went and it happened. "

"Suspect? "What kind of suspect?" Curious, I continued.

This time, without waiting for Chu Tiannan to reply