"He did not appear to be violent when he was at his most emotional. I spotted something powdery in his hair as I went by that table. It was not a lot. I would not have noticed it if I had not been paying attention. When I passed by, he was flipping through a book as if he was discussing its contents with someone beside him. I noticed that he had calluses on his right thumb, index finger, and middle finger. When I saw that, I was initially perplexed, but after that, I realized what his occupation was."
Colonel Lin remained silent and waited for Jiang Yao to finish her sentence.