Bonhoeffer wasn't roman catholic and neither am I. He wasn't hoping for forgiveness without repentance. He was expecting, knowing that he would need to repent for something but not able to determine the correct course. He chose to trust in god's mercy, and the forgiveness of the people hurt by his actions.
Copied from my other comment so you see it:
Contemporary Theology Understander: We cannot do evil so that good may come of it ... that is evil.
Big Brother D, unable to escape the conclusion that he must kill nazis: Lord Jesus Christ have mercy on me, a sinner.
Copied from my other comment so you see it:
Contemporary Theology Understander: We cannot do evil so that good may come of it ... that is evil.
Big Brother D, unable to escape the conclusion that he must kill nazis: Lord Jesus Christ have mercy on me, a sinner.