After ZDF broadcast "File Sign XY: New Notes on the Cold Case from Essen"

In a double murder case from the summer of 1999, investigators are still looking for the perpetrators – and receive ten new clues after the live show with Rudi Cerne. Also in the current case of the "Westerwald Murder", there is movement after the call for "File Sign XY".

More than 26 years have passed since the fatal shots were fired in the Schonnebeck district of Essen. The unexplained double murder was now the subject of "File Signs XY ... unresolved". And there were promising clues.