“Answers to Soldier” marked Keller’s first appearance—and I never expected to write more about the wistful hit man. But time passed, and I got to thinking about him. I figured he was just the sort of Urban Lonely Guy to find himself on a psychotherapist’s couch. And if the shrink has an ex-wife, and the ex-wife has a dog, well, you can see how one thing might lead to another…
“Keller’s Therapy” appeared first in Playboy, and won an Edgar Allan Poe award as the best short story of the year. And it launched Keller on a continuing career as a series character…