![France Paris Attacks People gather outside for a national service for the victims of the terror attack at Notre Dame cathedral in Paris, Sunday, Nov. 15, 2015. Thousands of French troops deployed around Paris on Sunday and tourist sites stood shuttered in one of the most visited cities on Earth while investigators questioned the relatives of a suspected suicide bomber involved in the country's deadliest violence since World War II. (AP Photo/Daniel Ochoa de Olza)](https://api.time.com/wp-content/uploads/2015/11/paris-attacks-notre-dame-mass001.jpg?quality=85&w=2400)
By TIME Photo
![France Honours Attack Victims As The Nation Mourns PARIS, FRANCE - NOVEMBER 15: People gather outside of Notre Dame cathedral ahead of a ceremony to the victims of friday's terrorist attacks on November 15, 2015 in Paris, France. As France observes three days of national mourning members of the public continue to pay tribute to the victims of Friday's deadly attacks. A special service for the families of the victims and survivors is to be held at Paris's Notre Dame Cathedral later on Sunday. (Photo by David Ramos/Getty Images)](https://api.time.com/wp-content/uploads/2015/11/paris-attacks-notre-dame-mass007.jpg?quality=75&w=2400)
![The Archbishop of Paris, Andre Vingt-Trois says mass at the Notre Dame Cathedral in Paris The Archbishop of Paris, Andre Vingt-Trois says mass at the Notre Dame Cathedral in Paris](https://api.time.com/wp-content/uploads/2015/11/paris-attacks-notre-dame-mass004.jpg?quality=75&w=2400)
![FRANCE-ATTACKS Paris mayor Anne Hidalgo (L) and Deputy-Mayor Bruno Julliard attend a mass service in homage to the attacks' victims at the Notre-Dame cathedral in Paris on November 15, 2015, two days after a series of deadly attacks. Islamic State jihadists claimed a series of coordinated attacks by gunmen and suicide bombers in Paris on November 13 that killed at least 129 people in scenes of carnage at a concert hall, restaurants and the national stadium. AFP PHOTO / LIONEL BONAVENTURELIONEL BONAVENTURE/AFP/Getty Images](https://api.time.com/wp-content/uploads/2015/11/paris-attacks-notre-dame-mass006.jpg?quality=75&w=2400)
![Former French President Valery Giscard d'Estaing arrives to attend mass at the Notre Dame Cathedral in Paris that is held in homage to the victims of a series of fatal shootings in the French capital on Friday Former French President Valery Giscard d'Estaing arrives to attend mass at the Notre Dame Cathedral in Paris, France, November 15, 2015, that is held in homage to the victims of a series of fatal shootings in the French capital on Friday. REUTERS/Lionel Bonaventure/Pool](https://api.time.com/wp-content/uploads/2015/11/paris-attacks-notre-dame-mass003.jpg?quality=75&w=2400)
![Mass at the Notre-Dame cathedral in Paris Mass at the Notre-Dame cathedral in Paris](https://api.time.com/wp-content/uploads/2015/11/paris-attacks-notre-dame-mass005.jpg?quality=75&w=2400)
![France Paris Attacks People gather outside for a national service for the victims of the terror attack at Notre Dame cathedral in Paris, Sunday, Nov. 15, 2015. Thousands of French troops deployed around Paris on Sunday and tourist sites stood shuttered in one of the most visited cities on Earth while investigators questioned the relatives of a suspected suicide bomber involved in the country's deadliest violence since World War II. (AP Photo/Daniel Ochoa de Olza)](https://api.time.com/wp-content/uploads/2015/11/paris-attacks-notre-dame-mass001.jpg?quality=75&w=2400)
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