The oldest death row inmate in the United States, a 94-year-old convicted double murderer, died of natural causes at an Arizona state prison. Local media report said Viva Leroy Nash died late Friday at the state prison in Florence, Arizona. Nash was sentenced to death in 1983 for murdering a sales clerk in Phoenix, Arizona, the year before. It was his second murder. Nash earlier served a 25-year prison sentence for shooting a police officer in Connecticut in 1947. After his release, he was sentenced to life in prison for shooting a man to death in Salt Lake City, Utah, in 1977. Nash escaped from a prison work crew in 1982 and committed his second murder, for which he was awaiting execution for 26 years.