There's not much on this thread so I thought I would share some infos
There's actually a wikipedia page (only in French) on this serial killer and his victims. His name is Emile Louis and he's one of the most disgusting man I ever seen.
Here's the "Chronology" section, translated in English :
Between 1975 and 1979, several young girls disappeared in the Auxerre region without leaving a trace. Young girls “from the DDASS” (child welfare), were placed under the responsibility and protection of the State via the services of the Directorate of Health and Social Affairs. They were in fact taken care of by the social services of the time because they were orphans or children taken from their families at birth to protect them from alcoholic and violent parents. Some suffer from slight mental disabilities.
However, they disappear amid almost general indifference: no one is concerned about their disappearance, apart from certain people who welcomed them and sometimes the scattered members of their family when they had one.
In 1984, Constable Jambert submitted a report to the courts on his suspicions. In the absence of evidence, no action will be taken, but the prosecutor still asks the investigator to continue his work6.
In 1987, 1988 and 1989, three other young women disappeared or were murdered under mysterious conditions in the area around Auxerre. Each time, justice quickly closes the cases without finding the guilty parties.
In total, nearly twenty young women “mysteriously” disappeared without a trace in the Yonne department.
It was only in 1996 that an association filed several complaints for kidnapping and sequestration - and not murder, since no body was found - almost twenty years after the first known facts. But the courts refuse to open proceedings, because of the limitation period, which has largely passed.
The victims' family association then decided to publicize the case and the broadcast in 1996 of the television program Perdu de vue allowed one of the worst French criminal cases to finally come to light. Viewers then discover that for twelve years, a stubborn police officer, Christian Jambert, has long suspected a local bus driver, Émile Louis.
In 1997, Constable Jambert, still on the trail of the killer, was found dead. It is officially a suicide, although the autopsy report reveals several inconsistencies, including the fact that two bullets, both described by medical examiners as fatal, were found in distant locations: one in the head, the other in the heart.
The investigation continued until December 2000, when the gendarmes went to the home of Émile Louis, in Draguignan, where he had moved. After assuring him that because of the prescription, he could talk about the missing women from Yonne without getting into trouble, the killer confesses: he murdered the seven young girls in the 1970s. He even guides the investigators to the bodies, in the Auxerre region, but only two victims were found. The killer is then placed in police custody and when he understands that he will ultimately have to pay for his crimes, he recants and proclaims his innocence, explaining that the cause of the disappearances is linked to a vast network of pimping which undermined the department.
Émile Louis was sentenced in 2004 to life imprisonment. At the end of the 1980s, he was convicted a second time for indecent assault on minors.
