On a quiet September evening in 2017, Tony Parsons set off on a 104-mile solo charity cycle from Fort William to his home in Tillicoultry, Scotland and never came back.
Parsons was a retired naval officer and a 63-year-old grandfather who had survived prostate cancer and was raising funds for others facing similar battles. When he vanished without a trace, his family were left in limbo. For years, there were no answers, but that changed three years later, thanks to a discarded can of Red Bull.
