Serial killer's widow named a suspect in 1997 disappearance of teenage girl in France

Monique Olivier, who is serving life for aiding her serial killer husband Michel Fourniret, is a suspect in the 1997 disappearance of a teenage girl in France, prosecutors said on Tuesday.

Olivier is formally in custody for the "kidnapping (and) illegal confinement" of 17-year-old Cecile Vallin and is being questioned by a specialist cold case unit, prosecutors in the Paris suburb of Nanterre told the AFP news agency.

Vallin was last seen around 6 p.m. on June 8, 1997, on a country road leading out of Saint-Jean-de-Maurienne, a small southern French town fewer than 20 miles from the Italian border.