The co-pilot of Germanwings Flight 9525 appears to have researched suicide methods and cockpit door security in the days before he flew the plane into the French Alps, killing 150 people.

Just over a week after a Germanwings plane crashed into the French Alps, investigators have finished retrieving human remains from the wreckage.

German daily Bild and French magazine Paris Match said their reporters have been shown a video they say was taken by someone inside the cabin of the doomed plane shortly before it crashed.