20-Year-Old Heiress Kidnapped and Buried Alive for 80 Hours. FBI Rescue Her From ‘Tomb’.Not many in the world can say that they were buried alive and somehow made it out to tell the tale. A 20-year-old heiress from Florida went through this harrowing experience in 1968, when a duo kidnapped her from a motel room, PEOPLE reported. Barbara Jane Mackle through those excruciating hours beneath the ground, kept her family in focus. Eventually, her ordeal ended when the FBI arrived to rescue her. Barbara Jane Mackle was a student at Emory University during the time of the kidnapping, UNILAD reported…