Along with the other Hirogen, he hunted the crew of the Voyager on the expanded holodeck. In the Nazi simulation, Turanj held the SS rank of a Untersturmführer. Karr believed that the Hirogen culture was dying due to the hunt, and wished to use holodeck technology which would preserve the tradition of the hunt, but allow the Hirogen to maintain and improve their culture. Turanj did not share this view. He wished to hunt and kill the crew, instead of using them over again for other simulations.
When Kathryn Janeway and Karr agreed to a cease fire in exchange for holodeck technology, Turanj killed Karr and assumed command, ordering Janeway to run so he could hunt her as prey. She deactivated his holo-weapon, and shot and killed him. He flew off the top exposed deck and fell three decks. (VOY: "The Killing Game", "The Killing Game, Part II")