The Man Who Knew Too Much. Gilbert Keith Chesterton

and framed in the two windows, he could not miss the chance, not only of revenge, but of the removal of the two obstacles to his promotion. He was a dead shot and counted on silencing both, though proof against him would have been hard in any case. But, as a matter of fact, he had a narrow escape, in the case of Nolan, who lived just long enough to say, 'Wilson' and point. We thought he was summoning help for his comrade, but he was really denouncing his murderer. After that it was easy to throw down the ladder above him (for a man up a ladder cannot see clearly what is below and behind) and to throw himself on the ground as another victim of the catastrophe.