The Artist of War

When his family is slaughtered by Union soldiers, Edward Thompson, the child of Jewish immigrants who settled in the Dakotas, is found and taken in by a childless Crow couple who raise him as a Native American with his half-brother, Thomas. After serving in the Indian Wars, Thomas becomes a Pinkerton Detective, investigating the eight men who murdered Thompson's parents and sister, and Thompson a bounty hunter, consumed by his desire for revenge. When Thomas is killed, Thompson vows to hunt the killer and his gang down, before going after his family's killers.