First, girls need to provide funds to protect themselves from rapists. Well, if there was a rape, then you need to give a punishment for the choice of the victim: rape the rapist in public, cut off his genitals or the death penalty.
The trauma inflicted on the already over-traumatized victim will be completely unbearable with any of these choices:
-to rape the rapist in public: this will traumatize the public, not to speak of the victim, who will relive the unforgivable act of violence against her, plus the assigned person to do this raping will most probably also be traumatized in this event.
-cutting off of body parts is something associated with complete insanity and can be classified a dangerous example for the public once again. Not a good example to deal with such a case.
-the victim did not die, so why should the perpetrator die? This does not seem adequate punishment imo. The victim might even be suffering from never ending remorse and feelings of guilt in being responsible for the murder of a person, even it being the perpetrator himself that dies.