The police are investigating whether Belgian serial killer Marc Dutroux was involved in the disappearance of Tanja Groen in 1993. “Last year, Peter R. de Vries declared the year of Tanja Groen,” the OM said. The Peter R. de Vries Foundation said in a reaction that “the police’s cold case team has regularly investigated the possible role of Dutroux in …
The police searched a specific grave in a graveyard in Maastricht on Wednesday in connection with the disappearance of then 18-year-old Tanja Groen in 1993. This search was prompted by new information the cold case team at the Limburg police received in the fall of 2019 about where Tanja's body might have been hidden, the police said in a statement. …
