John Appel’s 2021 Assassin’s Orbit is a science fiction mystery novel.
The planet Ileri is on the verge of joining the Commonwealth, a development not all of its citizens welcome. The last thing Ileri needs is a lurid mass murder. However, Ileri Station, high above the planet for which it is named, finds itself the scene of its first mass killing in seventeen years. Among the victims is Saed Tahir, grandson of private investigator Noo Okereke’s business partner. This makes the murders very personal for Noo.
The discovery of the Commonwealth Consul’s corpse amidst the other victims means that the mass murder is also an interstellar incident.