Desc: Gladiator Days: Anatomy of a Prison Murder: Directed by Marc Levin. With Larry Blackmon, Lonnie Blackmon, Eric Daniel, Troy Kell. The story of Troy Kell, a white-supremacist convicted in Nevada at age 18 of first-degree murder and sentenced to life in prison without parole. He was later transferred to a prison in Utah, where he attacked and murdered a black inmate by stabbing him 67 times. For that crime he was convicted and sentenced to death.