On that morning in November, he left his apartment in darkness to purify himself at a mosque built with Saudi money and staffed by a Saudi-trained imam who spoke no French. After completing this most important pillar of Islam, he rode a 601AB bus to the suburb of Le Raincy and then boarded an RER train to the Gare Saint-Lazare. There he switched to the Paris Métro for the final leg of his journey. At no point did he arouse the suspicions of the authorities or his fellow passengers. His heavy coat concealed the fact he was wearing an explosive vest.

He emerged from the George V stop at his usual time, 11:40, and started up the Avenue des Champs-Élysées. Those lucky enough to survive the inferno to come would later say there was nothing unusual in his appearance, though the owner of a popular flower shop claimed to notice a curious determination in his gait as he closed in on the entrance of the restaurant. Among those standing outside were a deputy minister of justice, a newsreader from French television, a fashion model currently gracing the cover of Vogue magazine, a Gypsy beggar clutching the hand of a small child, and a noisy group of Japanese tourists. The bomber made one final check of his watch. Then he unzipped his coat.

It was never clearly established whether the act was preceded by the traditional scream of “Allahu Akbar.” Several survivors claimed to have heard it; several others swore the bomber detonated his device in silence. As for the sound of the explosion itself, those closest had no memory of it at all, for their eardrums were too badly damaged. To a person, all recalled seeing a blinding white flash of light. It was the light of death, said one. The light one sees at the moment he confronts God for the first time.