1982-08-07

Marylyn Teresa Theriault was found murdered in Sayre, Oklahoma on August 7, 1982. She was twenty-two years old.

Marylyn, born July 16th, 1960, was from Nashua, New Hampshire. Reports indicate that she had last been seen alive at an Amarillo, Texas truck stop the night before she was found. She had no known ties to Oklahoma.

The circumstances of how Marylyn was found are unknown, however what we do know is that her death was brutal. She was found in the Red River, under a bridge on I-40, at mile #23, about a mile southeast of Sayre.

Marylyn was unclothed and had either had intercourse or been sexually assaulted shortly before her death. She was found with duct tape wrapped around her face, up to the bridge of her nose, and her ankles were bound by the same tape. Marylyn had duct tape around her left wrist, indicating that she had either been bound at one point by the wrists, or that her killer attempted to do so.

She had multiple contusions and abrasions on her face and body. Her cause of death was two-fold, asphyxiation by the duct tape wrapped around her face and she had also been strangled via ligature. All indications are that Marylyn fought her killer for her life.

No one has ever been charged with the murder of Marylyn Teresa Theriault.

If you have any information regarding the murder of Marylyn, please contact the OSBI at 800-522-8017. You can remain anonymous.