Have the president use his power of a presidential pardon to pardon anyone who kills a convicted rapist.
Deuteronomy 22:
25 But if a man find a betrothed damsel in the field, and the man force her, and lie with her: then the man only that lay with her shall die.
26 But unto the damsel thou shalt do nothing; there is in the damsel no sin worthy of death: for as when a man riseth against his neighbour, and slayeth him, even so is this matter:
27 For he found her in the field, and the betrothed damsel cried, and there was none to save her.