Wickedness, allied to the “truth” of religious belief, can lead men to heinous acts. For it is this sense of having access to the truth that makes religion the dangerous phenomenon that it so often is. Most of the terrible things human beings do to each other originate in a sense of moral conviction. . (Giles Fraser, The Guardian, June 1st, 2013)

Fraser goes on to say that, while we think the murder in Woolwich is wicked, the perpetrator feels it is right. And feeling right is one of he most powerful alibis for wickedness.

The Christians had their century of horrendous religious civil wars in the I7th Century, both sides basking in the feeling of being “right” (my ancestors were French Huguenots, victims of disgusting violence in the name of Jesus. But, being “right” themselves probably gave as good as they got).

Now it is the turn of the Moslems to have their century (?) of religious violence.

Just stop it. Read about Epicurus, and stop it!