Who killed Mary? Mary Beth Grismore, a 26-year-old woman from Marshall, Indiana, went missing on February 22, 1978. Grismore, who had recently married and adopted the last name Grismore, was reported missing from her residence in Marshall. On May 3, 1978, Whitehall Police discovered her body in the trunk of her abandoned car in the parking lot of a Holiday Inn in Whitehall, Ohio, after responding to a parking complaint.
Her body was identified using medical and dental records, and the Franklin County coroner determined that she had been strangled. The investigation revealed that she had died shortly after her disappearance, and her murder remains unsolved to this day.
The circumstances leading to Grismore's death have remained mysterious, with few concrete leads available to the investigators. After her disappearance, the authorities even consulted a psychic who suggested that she might have been shot; however, this claim was not substantiated, and no gunshot wounds were found on her body. In fact, she was determined to have been strangled. Police collected fingerprints from the vehicle's rearview mirror, but other than that, very little evidence was recovered from the scene. Despite repeated appeals for information and ongoing investigations by both Indiana and Ohio authorities, no significant progress has been made in solving the case.
In the years since her death, Grismore's case has received limited attention from the media, and her murder has largely remained in obscurity. Investigators continue to pursue any potential leads, and the case is still listed on Ohio’s unsolved homicides website. Despite these efforts, authorities have been unable to determine whether she was killed in Indiana or Ohio, given that her body was discovered across state lines. The FBI also became involved in the investigation due to the interstate nature of the crime, but no suspects have been definitively identified. Grismore's tragic death remains a haunting mystery for both her family and the communities involved.