Marly Kinney, a 19-year-old from Kentucky, drowned in Grayson Lake after being accidentally left behind during a boating trip with friends in June. Her body was discovered three days after she vanished, and authorities have ruled her death an accidental drowning, declining to pursue criminal charges. The ruling has sparked significant distress among her family and friends, who remain troubled by the circumstances surrounding her death.

A grand jury determined that Kinney, who had a blood alcohol concentration of 0.268 percent (well above the US driving limit of 0.08 percent), died after jumping into the water with others to relieve themselves. Approximately 30 minutes elapsed before her companions realised she was missing and attempted to locate her. Her best friend and sister have expressed lingering questions about what Kinney experienced during those lost minutes and whether earlier discovery might have prevented her death, though they have stopped short of blaming her friends, who reportedly cooperated fully with the investigation.