A door buzzer bears the name of the former Fussilet 33 mosque in Perleberger Strasse street in Berlin. According to police, Anis Amri, the Tunisian man German authorities are certain drove a heavy truck into a crowded Christmas market on December 19 and killed 12 people, was at the Fussilet mosque, which was known as a Salafist meeting point, shortly before he went to nearby Friedrich-Krause-Ufer street and hijacked the bus he drove into the market.