Originally, the Impressionist was called the Finger. Because, well, he was cutting off people's fingers. But then my editor pointed out that a killer called the Finger might be unintentionally humorous because of, you know, the finger. Around the same time she said this, I was already considering the artistic school of impressionism and the nature of copycat killers. It was a pretty seamless transition from the Finger to the Impressionist, and I like to think that I would have gotten there even without her gentle nudge, but who knows?