As a member of the death-worshiping Cult of M'dweshuu, McKnives sought ways to appease his religions' demand for blood sacrifice. He somehow made his way to the violent, nigh-unknown planet Rattatak. He committed several murders, with the intent of being forced into the planetary gladiator games as punishment - a wish which was granted. He was one of the better gladiators, but he died when Asajj Ventress used the force to make a rock on the arena ceiling collapse on him in a attempt to impress Dooku.