You asked: WHO committed the crime, the victim or the rapists?

These are two separate scenarios, Punishment of Rapist is "Death" in Islam. You are making your own assumption that she was Raped.

If she was "Raped", the rapists are to be "executed", period.

First get only one story then argue what is right and wrong, if there are different stories of which we are not sure which one is right/truth, there is no point in arguing.