You murder this rapist/murderer, and now you're in prison, and for what? Because you were mad, because you feel you'd lose face if you don't? Who benefits from this macho bullshit? The rapist is dead, your daughter is dead, and now your life is over. You've basically amplified the rapist's impact on your life- in a very real way, you let the rapist control you and ruin your life even more than it was when your daughter was murdered. What's so brave and manly about that?