Cynthia Robin Gooding, 16, disappeared from Marathon, Florida, after being dropped off with a 12-year-old friend, Teresa Alfonso, at the Marathon Movie Theater on September 3, 1974. The girls never entered the theater and were later reported seen leaving in a white or yellow van that was allegedly headed to a party. This was the first time either girl had been out unsupervised, and investigators no longer believe Cynthia or Teresa left voluntarily.

The case was hampered when the original file was lost in a fire. Despite age-progressed photos and ongoing efforts by law enforcement, no solid leads have emerged and both girls remain missing. If anyone was in Marathon on or around September 3, 1974, or remembers a white or yellow van or a party that night, authorities would like to hear from you.