Exactly 25 years ago today, 18-year-old student Tanja Groen disappeared without a trace in Maastricht. Even after all this time, her mother Corrie Groen hopes that someone will come forward with information about what happened to her youngest daughter. "You never know if someone will open their mouth", she said to RTL Nieuws.
Around midnight on August 31st, 1993, first year student Tanja left a party at her student association in Maastricht to cycle to her room in nearby Gronsveld. She never arrived there. No sign of her, not even her bicycle, was ever found.