Nice try, but I hate any kind of murder. It is as equally vile for one to murder in the name of Allah as it is to murder in the name of Jesus, Iehovah, Buddah, or L. Ron Hubbard.
As other posters have sagely noted in this thread, there is no evidence that the gang rape and humiliation of the girl in this story was based on the teachings of Islam. If you have evidence to the contrary in this case, we'd love to hear it.