Re: I forgot to add
@Waseem, I totally get what you're saying (being from Africa, seeing Ethiopian having this happen hurts, especially given they have a stellar reputation compared to many of their continental aviation compatriots).
The UN is special though and having multiple employees killed in a flight (similar to MH 17), can probably invoke additional protocols beyond just a standard accident investigation (usually handled by the country of the airline, the country of the manufacturer and certification authority, and possibly nations of passengers involved in the tragedy). I would not be surprised if they involved the French authorities as well. The global media tends to also sit up when an incident involves Europeans, Americans, or Asians.