R. Yossi Haglili says: What is the intent of "Then you shall do to him as he schemed to do to his brother"? We find in all the (capital) punishments of the Torah that the penalty of the man is like that of the woman, and that of the edim zomemin like theirs. But in the instance of one who fornicated with the daughter of a Cohein, the penalty of the man is not the same as that of the woman, that of the man being strangulation, and that of the woman, burning. But we have not heard what is to be done with their zomemin (in such an instance). It is, therefore, written "Then you shall do to him as he schemed to do to his brother." As the death of his brother is his death, and not as the death of his sister.