Vengeance Is A Wheel: Orion the Hunter Book 1

He is a marshal of the newly minted Federation of Worlds, a man-hunter and sworn to serve the law. 

Now he has returned to the world of his birth to fulfill a different oath. One made as he grew to manhood in the internment camps during the war.

An oath sworn on the blood of a dead family.

An oath that may leave his home world a dead husk by the time he is done.