SEYNE, FRANCE - MARCH 29: Rescue workers and gendarmerie continue their search operation near the site of the Germanwings plane crash on March 29, 2015 in Seyne les Alpes, France. French authorities confirmed that co-pilot Andreas Lubitz was alone in the cockpit during the rapid descent of flight 4U9525 until it crashed into mountains in southern France four days ago, killing all 150 people on board. Lubitz hid signs of illness and it is thought he acted deliberately in steering the aircraft to its destruction. (Photo by Thomas Lohnes/Getty Images)
