Shelley Diane Luty was 19 when she disappeared after her shift at the Llanerch Diner on Township Line Road in Upper Darby, Pennsylvania. On the night of August 23, 1982, she finished work around 11:00 p.m., said goodbye to her mother who also worked at the diner, and left in a mint green Chevrolet Impala she had borrowed from her stepfather. Neither Shelley nor the Impala were ever seen again.

Shelley was the devoted mother of a toddler daughter. She was described as a white female with reddish-brown hair, blue eyes, about five feet, three inches tall, with a small scar on her nose and a triangular or Christmas tree shaped scar on her arm. She had a history of epilepsy and a prior skull fracture.

Witnesses reported a white male customer, about 25 to 29 years old and roughly 5 feet 10 inches to 6 feet tall with an athletic build, who left the diner moments before Shelley and was seen speaking with her outside. A composite sketch was made; authorities have called him a potential witness, not a suspect. The FBI was involved briefly in 1984; the case remains active with the Upper Darby Police Department but has produced no confirmed leads and no recovery of Shelley or the vehicle.

Did anyone who lived or worked near the Llanerch Diner in August 1982 see the mint green Impala or the man in the composite sketch that night?