C556 Can you tell me why

Can you tell me why?

The two of them looked at the old man at the same time.

The old man's eyes filled with tears. "I have kept my secret for more than ten years, and now that I am going to die, I will never bring it into the coffin again."

With that, he explained to Zhang Xin and the others.

"I was a famous medical examiner back then, and now that there's such a big case