Final answer:
Danforth refuses to pardon the accused because it would be unjust, considering that twelve others have already been executed for the same crime, thereby seeking to maintain consistency in the application of justice.
Step-by-step explanation:
The reason given by DANFORTH for not pardoning the accused is that twelve people have already been hanged for the same crime. He believes it would not be just to pardon those remaining when others have already faced execution for identical charges. Danforth's commitment to consistency and the appearance of justice keeps him from offering a pardon, even if there may be a moral or legal argument for doing so.