Different cultures have different views on things like laws. There are a lot of nations on this planet that still have punishment from the middle ages, for example. I'll admit that those are mostly islamic or somewhat religiously fundamentalist, but it is their culture after all. It might seem unethical ( others would say wrong ) to most of us westeners, but then again, even among so-called progressive, liberal nations there are some who support the death penalty.
I am not saying that the killing of a thirteen-year-old girl is the same as the death penalty, but only because it seems wrong to us, it does not necessarily have to be wrong for the people in that culture.
I don't know what happened there ( and, I might add, neither does any of you ), but it most likely was a criminal act even under local law and should be treated as such. Simply saying that little girl is now dead because of islam is making it too easy.
People are dieing in civil wars all the time, women and children included. The situation on the ground is very complicated and we are not helping ourselves with prejudice. violent acts like that happen during civil wars all the time ( the balcans, chechnya (sp), africa ) and not all of it is religiously motivated.
Now, as far as the story about the guy facing the death penalty in Afghanistan is concerned, I believe the man in question was very well aware of the legal situation in Afghanistan, having been a muslim himself. why he would carry a bible with him and admit to being a christian under those legal circumstances is a mystery to me. I'm sorry but that's just asking to get arrested.
I certainly don't suppport nations who hold the scharia as their primary source of legal considerations, but every nation has different legal scripture, and who am I to tell other nations what is supposed to be the best choice for them ?