Marzahn is a locality within the borough of Marzahn-Hellersdorf in Berlin. Berlin's 2001 administrative reform led to the former boroughs of Marzahn and Hellersdorf fusing into a single new borough. From Wikipedia
A 34-year-old man remains hospitalized with head injuries following a late-night altercation in Berlin-Marzahn; the assailant fled the scene and remains unidentified.