I am 22 years old male. One girl used to be my friend, all of sudden she posted false allegations about me with my full name clearly visible, she wrote I was sharing filthy pages and inviting her to like xxx related pages. She made two status updates showing me pervert with my full name clearly visible (in caps). She defamed me without any kind of solid proof, I have done nothing wrong with my facebook account or in any other manner. I have screen shots of her posts (which is deleted now) it clearly show others liking and commenting on it. What can be done to sue her? I want to prove i'm innocent. Please experts help me with proceeding on this case and give her punishment for defaming me.