This is a spokesman for the Berlin police said on Monday. If there is already a concrete track that could not be said. The police released last week, images of the man from surveillance cameras and asking the public for help. So far, about 300 notices had been received. The man could be 12 according to the police, between the. and 30. June seven acts have been committed: Five of them in the Grunewald or in its closer surroundings in the southwest of Berlin, another in Brandenburg, Kleinmachnow (Potsdam-Mittelmark), just beyond the Berlin city limits, and Assault in Bernau, northeast of Berlin.