Governor Bill Haslam announced a $5,000 reward in a 30-year-old kidnapping and murder cold case.
Sisters Carla Atkins and Vickie Stout, just 14 and 16 years old, were last seen alive September 17, 1980 as they were walking on Highway 79 in Dover.
Their bodies were found about a month later by two hikers in the area known now as The Land Between the Lakes.
Investigators said both girls were killed at close range with a shotgun.
In December, the Tennessee Bureau of Investigation released new information saying witnesses remembered seeing the sisters talk to a man in a blue truck.
They provided an age-progression sketch of that man, and anyone recognizing him or anyone that may have information on the case to call 1-800-TBI-FIND.