A British family gunned down in the French Alps may have been the victims of a random killing, the prosecutor investigating the case has suggested.
Eric Maillaud said he has still found no motive for the murders of Iraqi-born engineer Saad al-Hilli together with his wife, mother-in-law and a French cyclist near lake Annecy in September.
But although investigators are keeping all lines of inquiry open, they have moved away from initial suspicions that the answer lies in a family dispute between Mr al-Hilli and his brother Zaid.
Mr Maillaud, Annecy's chief prosecutor who is leading the case, told the BBC: "Without doubt we are looking for someone who has killed before, someone who puts no value on human life.
"We are not sure whether that means it's a professional hit but if it was done on a contract it was very badly done.