The Fulton County , Georgia , Sheriff 's Office says it does not have an anonymous e - mail . The e - mail claimed that a former schoolmate confessed to killing Johnson , 17 . Johnson 's body was found in a warm - up mat in his high school gym more than a year ago . The death was ruled an accident , but an independent investigation called it a homicide .
The Lowndes County , Georgia , Sheriff 's Office says it does not believe an anonymous e-mail . The e-mail claimed that a former schoolmate confessed to killing Johnson , 17 . Johnson 's body was found in a rolled-up mat in his high school gym more than a year ago . The death was ruled an accident , but an independent pathologist called it a homicide .