More than five decades after Dennis Lloyd Martin’s disappearance, Nexstar’s WATE obtained the National Park Service’s case file, which details how the search for the boy was conducted after ...

The weekend of Father’s Day 1969, Dennis Martin was in the Great Smoky Mountains National Park on a trip with a group, which included his father, grandfather, and 9-year-old brother, the case ...

The weekend of Father’s Day 1969, Dennis Martin was in the Great Smoky Mountains National Park on a trip with a group, which included his father, grandfather, and 9-year-old brother, the case ...