On August 10, 1991, police officers found the partially naked body of a young woman in a wooded area near the highway in the French city of Besançon. Next to her lay a black tie, which had been used to strangle her. It took seven months to identify the body as that of 17-year-old Bianca Keil from Heidelberg, who had been reported missing. Bianca Keil was originally from Erfurt and had started an apprenticeship as a restaurant manager in a Heidelberg hotel. When 17-year-old Bianca failed to show up for work for several days and no one could reach her, her employer reported her missing on August 14, 1991. Six months passed before the Heidelberg police department received a message from the Besançon police in March 1992 reporting the body of a 17-year-old woman. The French police suspected that it could be the missing Bianca Keil, which turned out to be true. Shortly after Bianca’s disappearance, the Heidelberg criminal investigation department had set up a special commission, as the investigators assumed that Bianca had been the victim of a capital crime. Her 63-year-old great-uncle quickly came under the investigators’ scrutiny, as he had had an intimate relationship with Bianca until shortly before her disappearance, when she ended it because of a young man she had met in Erfurt. However, there was insufficient evidence to conclusively prove that her great-uncle was Bianca’s murderer. Finally, the special commission was disbanded. Twenty years passed before Bianca’s murderer could be convicted. Since the mid-1990s, it had been possible to examine even the smallest traces of skin abrasions for matching DNA. In December 2009, Bianca’s clothing was sent to the Stuttgart State Office of Criminal Investigation for forensic examination for traces of DNA. Three postcards that Bianca’s great-uncle had sent from France to Germany during his bicycle tours served as comparison samples. The same DNA was isolated from the saliva residues under the stamps. Then, in November 2011, the Forensic Institute of the LKA Stuttgart sent a message to the Heidelberg police. It stated that DNA material had been found on the tie used to strangle Bianca, which was 1 in 16 quadrillion times more likely to have come from her great-uncle. At the time, he was a long-distance truck driver who often passed through Besançon on his route from Germany to Spain. In 1991, microfiber traces from Bianca Keil’s last worn clothing had been found on his passenger seat during an examination of the car. It was now clear that Bianca had been strangled by her great-uncle around August 10 with his tie. However, he could no longer be held accountable for his heinous crime, as he had committed suicide in 2000.
By Isabella Mueller
Welcome to my journey through creativity and discovery! My name is Isabella Mueller, and I invite you to explore the fascinating creative universes I create through my blogs. Since 2020, I have been dedicating my passion to telling captivating stories that are mysterious, historical, and emotional. My goal is not only to entertain, but also to inspire reflection and awaken the spirit of discovery in each of us. At isabellas.blog, the suspense of crime stories is combined with exciting travel tips. Imagine wandering through the picturesque streets of a new city, uncovering dark secrets hidden in the shadows of its history. Every piece on my blog is designed to make the heart of every crime fiction fan beat faster while sparking curiosity about unknown places. Here, you are invited to experience the thrill of the unknown and the beauty of our world—a perfect combination for all adventure seekers! My second blog, akteq.com, is all about true, unsolved crime stories. Under the motto “akteQ: Cold Case Stories,” I reveal the eerie and often tragic stories behind unsolved cases. Together, we can explore the mysteries of the past and delve deep into the human psyche. What really happened? Who were the people behind these mysterious events? In this blog, I invite you to ask questions and find the answers that often remain hidden in the dark. You can find another exciting chapter in my blogging career at thecastles.org. Here, I embark on an enchanting journey through the history of castles and palaces. Pause for a moment as you discover the stories hidden within the walls of these ancient structures. “Explore the enchantment, discover the history – your journey begins at thecastles.org!” These words are more than just a slogan; they are an invitation to anyone who wants to combine history and magic. Be inspired by the impressive stories and the fascination of bygone eras! But that's not all! At kripo.org, you'll find a comprehensive online magazine for real criminal cases. Immerse yourself in the world of crime, learn about the real stories behind the headlines and the people who are involved in solving them. With criminal.energy, I take you on a journey through the gripping stories of true crimes in which villains are hunted, caught, and convicted. The search for justice and the confrontation with the unknown are at the center of it all. TrueCrime Blog 187.news takes you into the depths of crime. And for those who want to travel the world, wanderlust.plus offers the opportunity to explore the world, one adventure at a time. It's all about the love of exploration and the joy of discovering new cultures and landscapes. Finally, truecrime.ch invites you to discover the dark side of Switzerland and Europe: true crimes, true stories. Let's discover together the stories that shape the world around us. I look forward to accompanying you on this exciting journey and hope you will share many unforgettable moments with me!