I've been meaning to read this ever since I read the first book several years ago. That's where we're first introduced to Fred Johnson, leader of the OPA, who was once (and still is) known through the solar system as the Butcher of Anderson Station. This short story elaborates on the brief hints of how he got that name that we got in Leviathan Wakes, and also shows how Fred got involved with the OPA to boot. More importantly, it doesn't just show us how he got that name, but what he did with it, and why it's important. Very good addition to the world. Does just what extra content should do, elaborating on the world, but nothing you wouldn't miss if you didn't read it.