The prosector in charge of finding the killers of the French Alps attack says
there will be no "quick solution".

Around 100 police officers in Britain and France are investigating the deaths
of engineer Saad al-Hilli, his wife Iqbal, her mother and a passing cyclist last
month.

The couple's two daughters survived.

Annecy's chief prosecutor Eric Maillaud says they're still trying to figure
out why they were killed in the first place.

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