French police hope to revive their probe into the killing of a British-Iraqi family in the Alps following the release Monday of an identikit image of a mysterious motorcyclist. Investigators have put forward numerous theories for the 2012 shooting of Saad al-Hilli, his wife and her mother, including the possibility of an inheritance dispute involving Hilli's brother Zaid, who was arrested by British police in June. He was subsequently released and has protested his innocence.VIDEOGRAPHIC
