Autopsy contradicts guard's account in Tennessee shooting death

An autopsy for 20-year-old Evaniel Johnson shows he was shot in the back during an encounter with Tennessee National Guard members, contradicting law-enforcement accounts that he turned toward officers with a firearm. Officials say the death is a homicide and the investigation is open and ongoing, with no charges filed. Johnson's family has questioned the evidence and is seeking video or other proof of what happened.