24-year-old David Sneddon went missing in August, 2004 from Yunnan Province, China, near an area called the Tiger Leaping Gorge. David had been studying in Beijing, and was traveling around Southern China before returning home. In this episode, part one of a two-part series, we speak with both George Bailey, the last person who knew him to see him before he disappeared, and his brother, James, who travelled to China to hike the trail in search of his lost brother.