Gregor and her boyfriend, John Feeny, left her Robinson Township, Pennsylvania residence in the evening hours of October 21, 1977 to get something to eat. A photograph of Feeny is posted below this case summary. He was 17 years old in 1977 and lived in Coraopolis, Pennsylvania. He was Gregor's second boyfriend.

Gregor's father believed the the couple was going to a nearby pizza parlor. They were last seen at approximately 10:00 p.m. that day at a gas station. Feeny had been instructed to return his family's vehicle by 10:00 p.m., so his mother, who worked the night shift, could drive it to work. When Gregor did not come home, her parents became concerned and contacted authorities.

The following day, Feeny was found murdered at the steering wheel of his yellow van, which was parked with its motor running off of Crescent Road, near an old strip mine in a spot known as a lover's lane. He had been shot once in the right side of his neck at close range with a shotgun. The only sign of Gregor was her blue and white jacket and her purse, which were inside the van. Gregor has never been heard from again and is believed to have been abducted by Feeny's killer(s).

Edward Surratt is considered the prime suspect in Gregor's disappearance and Feeny's murder. A photograph of him is posted below this case summary. He is currently serving multiple life sentences in a Florida prison and is suspected of at least 18 murders. In 2007, Surratt admitted to killing Feeny and Gregor, and six other people, including David Hamilton and his wife Linda, who is still missing. He stated Gregor's body was "unrecoverable." In exchange for his statements he asked to be transferred to a prison in South Carolina; he believes conditions there are better. Authorities stated Surratt's admissions were vague and they would like more detailed confessions from him. He has not been charged in connection with Feeny's homicide or Gregor's disappearance.

Foul play is suspected in Gregor's disappearance, which remains unsolved. She was a junior at Montour High School at the time of her disappearance.

Left: Edward Surratt, circa 2007;
Right: John Feeny, circa 1977