BERLIN- A Tunisian man who German police suspect of involvement in Monday's attack on a Berlin Christmas market had been in contact with the network of a leading Islamist ideologist known as Abu Walaa, Germany's Sueddeutsche Zeitung reported. The newspaper, which did not cite a source in its report, added the Tunisian had applied for asylum and been granted a residency permit. He had gone into hiding this month, the paper added.
