Lillian Laurel Prahin, 49, was last seen in Bay City on Wednesday, September 22, 1982, with unconfirmed sightings as late as September 24. Her body was found floating in the Chippewa River off South 9 Mile Road in Midland County on Saturday, September 25, 1982. Investigators determined she had been murdered.

Her silver 1976 4-door Chrysler with a maroon vinyl top disappeared after her death and turned up nearly three weeks later, on October 11, 1982, in the parking lot of a Meijer Thrifty Acres in Ionia, Michigan — a significant distance from where she had been seen and where her body was recovered. No suspects have been publicly named and no arrests have been announced as authorities have periodically revisited the cold case.

What details about Lillian’s last days or her car might someone from Bay City or Ionia remember that could help finally close this case?