In October 1976, 16-year-old Trenny Gibson boarded a school bus in Knoxville, Tennessee, expecting a routine day. Instead, her horticulture class was taken on a rainy hike into the Great Smoky Mountains National Park without warning. Unprepared and uneasy, Trenny borrowed a jacket from a fellow student. By mid-afternoon, she was gone. One moment she was on the trail, the next she had vanished. Nearly 50 years later, her disappearance remains unsolved. Questions linger about suspicious behaviour, missing evidence, and why the case quietly faded from view. In this episode, we speak with podcast hosts Tim Pilleri and Lance Reenstierna about their investigation into the haunting mystery of Trenny Gibson.  You can listen to Tim and Lance's podcast Missing, here and watch their YouTube videos here.  CREDITS  Guests: Tim Pilleri & Lance Reenstierna Host: Gemma Bath Senior Producer: Tahli Blackman Group Executive Producer: Ilaria Brophy Audio Engineer: Jacob Round GET IN TOUCH Follow us on Instagram and TikTok @truecrimeconversations Make sure to leave us a rating and review on Apple & Spotify to let us know how you're liking the episodes.  Want us to cover a case on the podcast? Email us at [email protected] or send us a voice note. If any of the contents in this episode have caused distress, know that there is help available via Lifeline on 13 11 14 or Beyond Blue on 1300 22 4636. We acknowledge the Traditional Owners of the Land we have recorded this podcast on, the Gadigal people of the Eora Nation. We pay our respects to their Elders past and present and extend that respect to all Aboriginal and Torres Strait Islander cultures.Become a Mamamia subscriber: https://www.mamamia.com.au/subscribeSee omnystudio.com/listener for privacy information.