berlin german federal judge issue arrest warrant wednesday 19-year-old syrian man detain suspicion plan bomb attack public prosecutor office gba say statement police detain man identify yamen a. german privacy laws tuesday prosecutors say believe plan islamist-motivated bomb attack aim kill many people possible contact online jihadists include one describe soldier caliphate spokeswoman federal prosecutor office say yamen a. arrest northeastern town schwerin police search home also people suspect directly involve arrest come one month first anniversary attack berlin fail tunisian asylum seeker kill 12 people plow truck christmas market concrete block instal around christmas market several central square capital year festive season open couple weeks germany issue arrest warrant syrian bomb plot suspect