Every crime, even the most atrocious, may be justified.
From a moral point of view, there is no excuse for terrorist acts, regardless of the motive or the situation under which they are carried out.
Well, demonization itself can help ... to provide an alibi. You succumb to the Devil incarnate, and as a result you're not guilty yourself.
It is remarkable that among all the preachers there are so few moral teachers. The prophets are employed in excusing the ways of men.
The human moral sense can excuse any atrocity in the minds of those who commit it, and it furnishes them with motives for acts of violence that bring them no tangible benefit.
I wonder that no criminal has ever pleaded the ugliness of your city as an excuse for his crimes.
So spake the Fiend [the devil], and with necessitie, The Tyrant's plea, excus'd his devilish deeds.