ZDF Aktenzeichen XY presents unsolved criminal cases

The German television program Aktenzeichen XY... Ungelöst, hosted by Rudi Cerne, is featuring several unsolved criminal cases in its upcoming broadcast on November 4, 2026. The show aims to solicit new information from the public to assist investigators in long-standing cold cases.

Key cases include the 1985 disappearance of six-year-old Sven Hollstein in Ludwigshafen, Germany. Hollstein was last seen in the Pfingstweide district, and despite previous investigations and a suspect being acquitted in court, his fate remains unknown. The program also highlights the 1988 disappearance of 22-year-old Dagmar Knops in Kempen, where police suspect a crime occurred.

Additionally, the show will address a violent robbery in Dortmund involving an 88-year-old woman. The perpetrator, described as a slim man between 30 and 40 years old with a well-groomed mustache, allegedly attacked the victim in her home. Other cases include a robbery of a security transport company and a disappearance involving a female student.