In the chaos of the explosion at the Comptoir Voltaire cafe, one of several targets hit in the Nov. 13 Paris attacks, nurse David sought to help the wounded.
Among them was a man lying amid overturned chairs and tables. David, who asked to be called just by his first name, lay him down. The man did not look to have massive injuries, but appeared unconscious, so David began CPR, the cardiopulmonary resuscitation he'd been trained for.
When he tore open the man's T-shirt, David quickly realized that what he initially thought was a gas explosion at the cafe close to the Bataclan music hall where gunmen killed 89, was actually something far worse.