I've always wished for more artistic talent. Well, murder can be an art, too. The power to kill can be just as satisfying as the power to create.

“It doesn’t matter,” he said.
“Then why are you sorry?”
“Only because I prefer an active to a passive reaction. In this game that we’re playing, we can’t win. Some kinds of failure are better than other kinds, that’s all.”

You should be grateful for being able to do your share accomplishing the destiny of a fellow being. It was written in the book of heaven that this man must die at this particular time and at this particular place. For a moment, the actual accomplishing of his departure has been bungled. Something has gone wrong. Perhaps it means to be a thunderbolt. And there was no thunder available. Then you come along, and you shoot him. Heaven's will is done. And destiny fulfilled.