Heinz K. worked as a truck driver for the Murante company at Strelitzer Strasse 53. After the Wall was built, the company was situated within the border area and Heinz K. had a permit to enter it. On September 22, 1961, he parked his truck between site huts so that the border guards could not see him. He fled unnoticed over a back fence and the fivemeterhigh wall covered with broken glass that stood between the buildings at Bernauer Strasse 11 and 13.