Elizabethton High School Students Are Partnering With The Tennessee Bureau Of Investigation To Solve A 40-Year-Old Campbell County Tennessee Murder Case. Sociology Students Are Raising Awareness About Tracy Sue Walker, Whose Skeletal Remains Were Found In 1978. Walker Was 15 When She Disappeared From Lafayette, Indiana. The Students Have Designed Signs, Flyers And Wrapped A Car With Walker’s Photo To Generate New Leads. Governor Bill Lee Has Issued A 10,000 Dollar Reward For Information In The Case. Anyone With Information Is Urged To Call 1-800-Tbi-Find.