Monsieur Leiris, is clearly lucky to have a faith in God, and I am pleased he is not feeling dejected by his God. This is why I envy many people their faith, even if I know longer share it.
I have tried to visualise how I would have reacted. I am sure I would have cried, with sorrow. But no matter how hard I try I can't envisage forgiveness.
I also think it's a little early to settle the dilemma of hatred.The hatred may come later?
Finally without appearing cynicle, in a way Monsieur Leiris is fortunate that he has a son, that his wife can continue living through his son. So I think he has a unique reason not to carry hatred. I also think Monsieur Leiris words are an example of responsibility to the world. That in itself in some small measure, beats the terrorists.
Monsieur Leiris I salute you, your WIFE and your son.
The Rebel.