The provided episode details the 2001 disappearance of Hyun Jong "Cindy" Song, a Penn State student last seen after a Halloween party in State College, Pennsylvania. Despite an initial search of her apartment revealing her backpack and phone but missing her purse, no concrete evidence surfaced. A potential sighting in Philadelphia proved unreliable, and a later sensational claim by a criminal implicating a suspected serial killer could not be substantiated. Ultimately, Cindy Song's whereabouts remain unknown, with no physical evidence, witnesses, or active suspects in her unsolved vanishing.