On a Friday night in November, 2015, French journalist Antoine Leiris kissed his wife Helene goodbye on her way out the door for a concert. He was watching their 17-month-old son, Melvil. It was the last time he would see her alive.
Helene was one of more than 90 people killed by terrorists at the Bataclan concert house that night in what was the deadliest attack on France since World War II. Two days after the attacks, while still trying to understand what had happened to him, his child, his country, Leiris wrote an open letter to the terrorists in a Facebook post (ah, modern life) that went viral.