From the outset it was obvious to seasoned observers who massacred more than 130 Russians at a concert hall Moscow on Friday evening. It wasn’t, as some in the Kremlin claimed, Ukraine. What would they stand to gain from such indiscriminate slaughter?

The people who opened fire in the Crocus City Hall cleaved to the same ideology as those who have this century murdered thousands of innocent men, women and children in New York, Bali, Madrid, London, Brussels, Paris, Manchester and Nice.