Kesha Jackson was preparing for her husband, John, to be home in a few weeks. But then Jackson got a concerning call from other inmates. Her husband, in the special housing unit, was going in and out of consciousness. He died soon after. And as she waited for some explanation, Jackson was surprised to learn what prison officials pronounced as the manner of death: natural." By deeming the death natural, prison authorities were not required to conduct an autopsy for Jackson's death. It's how they characterize at least three-quarters of all federal prison deaths since 2009. "When his medical records came home after he passed away, I saw that it was MRSA," Jackson said. "Saying that it's a natural death can sometimes be misleading because I believe that having the proper medical treatment could have possibly saved his life," Jackson said. The CDC says natural deaths happen either solely or almost entirely because of disease or old age. Yet 70% of the inmates who died in federal prison the last 13 years were under the age of 65. NPR found that potential issues such as medical neglect, poor prison conditions and a lack of health care resources were left unexplained once a "natural" death designation ended hopes of an investigation. Meanwhile, family members were left with little information about their loved one's death. Homer Venters, a federal court monitor of jail and prison health care, calls deaths like Jackson's "jail attributable."