Chartier resided in Chelmsford, Massachusetts in 1982. On the night of June 5, she attended a party in Billerica, Massachusetts with her fiance of of four months. They had an argument during their stay and Chartier drove her fiance to his home, then continued back to the party by herself. Witnesses told investigators that she left the party at approximately 2:00 a.m. alone. Neither Chartier nor the black 1977 Dodge Swinger she was driving have been located since that time.

Investigators with the Chelmsford Police Department received a tip from the US Secret Service in Washington D. C., who were investigating a counterfeiting operation. One of the ring's suspects, James Mitchell DeBardeleben, was also believed to be connected to a number of murders in the US. Secret Service agents found a map of the Chelmsford region where Chartier disappeared in 1982 in the suspect's car, along with several photos of women involved in sadomasochistic acts. A receipt from a local motel in Chelmsford in the car; it was dated "June 4, 1982," the day prior to Chartier's disappearance. It is known that DeBardeleben liked brunettes, which fits Chartier's profile. Chelmsford police detectives attempted to work with DeBardeleben regarding Chartier's case, but leads never panned out. It is worth noting that DeBardeleben was ruled out as a suspect in the 1982 Michigan disappearance of Kellie Brownlee.

Chartier was employed at a fast food restaurant in Chelmsford at the time of her 1982 disappearance. Her mother told authorities that Chartier was being harrassed by a male co-worker at the time she vanished. Chartier's mother also stated that her daughter was frightened of the employee. It is not known if the unidentified male is connected to Chartier's disappearance. Her family believes she met with foul play at the hands of someone she knew.

Chartier's mother died in 2003, and her father has since moved to New Hampshire. Her case remains open and unsolved.