Domenico Lorusso, 31, was stabbed to death in Munich on May 28, 2013. The crime became known throughout Germany as "Isarmord" - and there is still no trace of the murderer.
A poster is being put up at the scene of the crime today, asking: "Who murdered me here?" The family of the murdered man chose the photo themselves, according to the Munich police. Up to five investigators are still involved in the case, and 30 clues and starting points have emerged.