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Even more of Au bout de l'enquête here: https://www.france.tv/france-2/au-bou... Subscribe https://bit.ly/3qzjwqL Full The Stéphane Dieterich Affair - Au bout de l'enquête On July 5, 1994, the body of Stéphane Dieterich, a brilliant business school student, was found, stabbed eleven times, in a small wood on the outskirts of Belfort. The investigation will explore many leads: his best friend, the fairground world, a serial killer who was active in eastern France at the time. In this case full of twists and turns, an environmental activist even seriously considered being the real target of this murder... The investigation will eventually get bogged down. But thanks to the determination of the Dieterich family and in particular the victim's brother, the investigations will come to a conclusion 21 years after the events. Successive media campaigns will end up refreshing the memory of a crucial witness. Today the culprit is sleeping in prison. Every Saturday at 2pm on France 2, this magazine focuses on "cold cases". Closed cases, deemed insoluble, which have sometimes resisted the tenacity of investigators for nearly 50 years before a clue, an unexpected testimony or an innovative scientific expertise allows the culprits to be caught. Alongside Marie Drucker, criminologist Alain Bauer brings technical, psychological, sociological or historical insight to each case to understand the procedures implemented during the investigation, but also its issues and repercussions.