Mary Ann Perez was a woman whose remains were found in Grand Bay, Alabama in 1976.
She had been accepted a ride from a couple, David and Donna Courtney, who strangled her and dumped her body in a field in Alabama.
David Courtney is already serving time in prison for another murder. Donna Courtney died in 1990.
- Perez' case was shown on a 1991 episode of Unsolved Mysteries.