Families are due to gather in a village in the French Alps to mark the first anniversary of the Germanwings air disaster.
The co-pilot of the Germanwings plane that crashed into the French Alps on Tuesday appears to want to "destroy the plane"
A cockpit voice recorder badly damaged when a German jetliner smashed into an Alpine mountainside and a crucial two-minute span when the pilot lost contact are vital clues into what caused the plane to go down, killing all 150 people on board
