Ongoing investigations into the Halle attack have so far concluded that the right-wing extremist attacker acted alone. But "lone wolves" are anything but isolated. By Sandra Petersmann and Naomi ConradMore
Danish Siddiqui, the Reuters journalist killed in crossfire last Friday covering the war in Afghanistan, was a largely self-taught photographer who scaled the heights of his profession while documenting wars, riots and human suffering. By Raju Gopalakrishnan and Mike Collett-White
