Because fundamental Islam pretty much encourages violence against women?? Why are you not asking why violence against women is much more prevalent in Middle Eastern countries than almost anywhere else on Earth?

Despite how you've framed your comment, "blaming the dad for being a murderer" is the most surface-level analysis of this situation. We need to ask ourselves why did he kill her (as in, what environment needed to exist to make a father think that murder was a solution to whatever problem there was).