The Hinge of History: Henry Tandey and Adolf Hitler

Not exactly a religious story, but one of those haunting moments that illustrate the possible consequences of human foreknowledge:

Tandey was haunted the remainder of his life by his good deed, the simple squeeze of a trigger would have spared the world a catastrophe which cost tens of millions of lives.  He was living in Coventry when the Luftwaffe destroyed the city in 1940, sheltered in a doorway as the building he was in crumbled and city burned like a scene from Dante's Inferno. He was also in London during the Blitz and experienced that atrocity first hand, he told a journalist in 1940, "if only I had known what he would turn out to be.  When I saw all the people, woman and children he had killed and wounded I was sorry to God I let him go".

As Kendall Harmon would say, read it all.