There was something Kaien knew about Choi Byungsu.
I didn't discover this immediately. I discovered it on a Thursday evening, two and a half weeks into the expanded investigation, when we were in the annex reviewing the second batch of financial records that had arrived — in full, on schedule, following our responses to the liaison office's procedural inquiries, which had not recurred after the Lee interaction.
I was working through the building management company's bank records when I noticed Kaien had been looking at the same page for longer than his usual reading pace.
I looked at him. He was aware that I was looking. He set the page down.
"I know the Daegu connection," he said.
I waited.
