A pilot who sparked fears of a terror attack in Frankfurt by circling the city in a plane has been ruled mentally unfit to stand trial. Franz Strambach, 32, said he commandeered the light plane to kill himself in memory of a dead female US astronaut. The drama, on 5 January, caused terror in parts of the business capital as the plane circled high-rise office blocks for nearly two hours. Mr Strambach threatened to fly it into the European Central Bank. As the plane flew over the city, shadowed by fighter jets, air traffic at Frankfurt airport was halted and parts of the city centre were evacuated. Full Story