We held a case discussion, during which Bingxin concluded that the school playground was the crime scene by comparing the sand found on the corpse with the sand on the scene.

Several officers spoke to witnesses at the scene. It was very late at the time, so there was no one on the road. The school used to employ a gatekeeper who reportedly left due to urgent matters at the time. My guess was that he was a habitual loafer on the job.

During the meeting, I heard the name Ma Sanyou come up constantly. Many thought we should keep an eye on Ma Qiaojun. I had nothing to say about that since I planned to solve the case with just the five of us.

I ask the fat officer for a favor. I needed a list of all the residents on that street over the past...