Mary Beth Grismore, 26, was reported missing from her rural Marshall, Indiana, home on February 22, 1978. She had recently remarried and was planning a move back to Iowa with her new husband. The last confirmed sighting was in the early morning after a night out with her sister and friends in Terre Haute. There were no signs of forced entry or a struggle at her home, but both Mary Beth and her car were gone.

On May 3, 1978, police in Whitehall, Ohio, found her abandoned car in a Holiday Inn parking lot. Her badly decomposed body was discovered in the trunk, wrapped in a towel and a blanket; the cause of death was listed as strangulation and investigators believe she was killed shortly after her disappearance. The FBI joined Ohio and Indiana authorities; fingerprints were recovered from the car’s rearview mirror but did not immediately solve the case. Investigators documented an affair between Mary Beth and a former supervisor, Patrick Ralston, and unproven allegations involving U.S. Senator Birch Bayh were raised during the probe. Decades later, no arrests have been announced and the murder remains unsolved.

Did anyone who knew Mary Beth in Marshall or Terre Haute have information about her movements that February night?