72 Germans, 50 Spanish, 3 US-Americans, 3 Britains, 3 Kazakh, 3 Argentinies, 2 Australians, 2 Columbians, 2 Mexicans, 2 Irans, 2 Venezuelans, 2 Japanese, 1 Dutch, 1 Danisch, 1 Belgian, 1 Israeli
The CoPilot was the only one in the Cockpit and there are rumours that he attempted suicide.
Actually, I think you are all forgetting something. The door on an A320 can only be opened by the pilot for security reasons. Pilot 1 probably left the cabin for some reason, then Pilot 2 had a heart attack behind the wheel. The pilot knocked on the door, but he couldn't get through as he couldn't open the door.
Anyway, may the victims rest in peace, and may their families find hope at this very sad time.