A police officer stands in front of a house where the co-pilot of the crashed Germanwings airliner jet is supposed to have lived in an apartment, in Duesseldorf, Germany, Thursday March 26, 2015 during investigations of the crash of an aircraft in the French Alps on Tuesday killing 150 people. The co-pilot of the doomed Germanwings jet barricaded himself in the cockpit and “intentionally” sent the plane full speed into a mountain in the French Alps, ignoring the pilot’s frantic pounding on the door and the screams of terror from passengers, a prosecutor said Thursday. (AP Photo/Martin Meissner)