File picture dated January 15, 2012 of France's Jewish leader, Chief Rabbi Gilles Bernheim in Bordeaux, southwestern France. Gilles Bernheim received a letter of threat signed by small group IFO (Interaction des Forces de l'Ordre), the same group who sent letters of death threats with blank cartridges to French investigation judge Jean-Michel Gentil - who investigated former President Nicolas Sarkozy in the Bettencourt case - and to journalists Jean-Pierre Elkabbach et Michael Darmon. Photo by Bernard-Salinier/ABACAPRESS. COM