A Kingsport Couple Has Been Added To The Tennessee Bureau Of Investigation’s Top 10 Most Wanted List. Jarret Heitmann And Makayla Stilwell Are Both Wanted By The Sullivan County Sheriff’s Office And The TBI For Their Role In A Robbery And Shooting That Occurred On Tuesday In Kingsport. The Couple Should Be Considered Armed And Dangerous. A 1-Thousand Dollar Reward Is Being Offered For Their Arrest. Anyone With Any Information Should Call 1-800-TBI-FIND.