This has been a particularly difficult week at the Paris terror trial, where the survivors of the Bataclan attack, and the families of victims have come to give their version of 13 November 2015. There have been tears and courage. There has been the unfailingly benevolent attention of court president, Jean-Louis Périès. And there have been smiles too.
One of Thursday's witnesses was among those who barricaded themselves into a tiny dressing room at the level of the first-floor balcony in the Bataclan.