German authorities have taken a 26-year old Tunisian into custody in connection with December’s deadly truck attack on a Christmas market in Berlin. His detention follows searches and the overnight raid of a refugee shelter in the suburb of Spandau. New Berlin attack arrest after police raids https://t.co/QKi8GexmTM pic.twitter.com/oOfR6jMz4B— Reuters TV (@ReutersTV) January 4, 2017 Associates?…