Pope Francis just released a bull where he praises the "mercy" practiced by members of Islam.
Among the privileged names that Islam attributes to the Creator are Merciful and Kind. This invocation is often on the lips of faithful Muslims who feel themselves accompanied and sustained by mercy in their daily weakness. They too believe that no one can place a limit on divine mercy because its doors are always open.
Anyone who knows even a tiny particle about the history of the era and the culture of the region knows that the perps were Turks, and that the Turks have been Muslim for 1000 years or so.