Helen Duffner, a woman in her 60s, was found murdered on April 27, 1977, near her vehicle along Mount Rose Highway south of Reno, Nevada. She had been living out of her car, a white 1964 Chevy Nova, which was parked close to where her body was discovered on a dirt road off the highway. Duffner had been shot.

The case drew attention because of the remote location and the absence of any clear motive. Authorities struggled to find suspects or a concrete explanation, and the investigation eventually went cold. Police have periodically reviewed the file and continued to request tips over the years, but no arrest has been announced and the murder remains unsolved.

Does anyone remember seeing a white 1964 Chevy Nova or anyone acting suspiciously along Mount Rose Highway around April 1977 who could help investigators?