Reviews of All My Sins Remembered (1977)
First off, I wouldn't have called this book space opera. Granted, it is hard to name the genre though, it's not exactly a normal science fiction story or fantasy.
A murderer with a conscience, and that conscience is killing him. Trained to be the best at his job of chameleon assassin and mr. Fixit, the realisations of what he has done in his life are harsh.
The story is well brought and tragic, the ending truly makes you hope that this is not the future we are heading for.