Kathleen Beitzel was 33 and the mother of three when she vanished after a Glen Ellyn, Illinois party on the evening of Saturday, July 14, 1979. Witnesses last saw her get into the backseat of her husband’s car as they left the gathering; she was wearing a black blouse and white satin slacks and had a scar on her left knee. She worked as a realtor and had reportedly discussed divorce at the party.

Her husband told family she had left him and was seen driving her car to work the following Monday, unusual since he normally drove his own vehicle. All of Kathleen’s personal belongings remained at home, and there was no contact, financial activity, or credible sightings afterward. The Streamwood Police Department handles the investigation, and she is listed in national missing persons databases. Her family believes foul play was involved.