The Alamance County Sheriff's Office made the announcement on social media Thursday during a press conference.
20-year-old college student Tammy Sue Aldridge was abducted and found murdered in 1979.
Investigators said her body was found in the middle of a road with her ankles bound, and that she had been sexually assaulted.
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No suspect was ever charged. DNA technology in 2024 was able to identify Gary Laframboise as a suspect in the case.
Authorities said Laframboise was around 19 years old at the time of Albridge's murder, and he lived just a few miles from where her body was found.
Laframboise died in 2020 and officials were not able to make an arrest in connection with this case.