"I think I just mentioned that security guard to you, didn't I?" I said with a slight smile, turning to Director Cao.
"Yes, you did," he answered, "Do you mean to say that Old Yang killed those students? That's impossible. If what you're saying is true, it would be unbelievable." Director Cao still couldn't believe that the security guard was responsible for everything.
"Heh, it's often said that you can't judge a book by its cover, just like you couldn't have known my true identity if you hadn't found out. Do you really know who I am?"
Director Cao fell silent, perhaps because I had touched a nerve. After all, someone of his age had seen many faces, and he had thought of Yang Feng's father as a helpful person. But actually, Yang Feng's father had been hiding his true nature, even deceiving Director Cao, so it was no wonder that Director Cao was incredulous when faced with the truth.
