Why did prosecutor said these Nazi leaders did not deserve mercy?

Prosecutors argued that the Nazi leaders did not deserve mercy because of the egregious nature of their crimes, which included the systematic genocide of millions and widespread atrocities during World War II. They emphasized that these leaders acted with deliberate intent and a complete disregard for human life, demonstrating a profound moral depravity. By denying mercy, prosecutors sought to ensure accountability and justice for the immense suffering caused, reinforcing the principle that such heinous acts cannot go unpunished.