The internet – famous beauty, Teacher Taotao, was killed. Before her death, she wrote a few words on the drawing board: “Zihan’s dad…” There are four students named Zihan in the class, including my daughter. I became a suspect. 1 I was at work when the dad of Li Zihan sent me a message: “Lao Zhang, come and play games. Log in quickly.” I sat up straight, placed my phone