I am not sure why you would even ask such a question, I wonder what kind of bubble you live in where this is even questioned? That is horrible in itself, and a horrible thing for the victims to have people question rape, sexual abuse and murder. This is the side you want to stand on?
If you are just ignorant and have never heard of it, I suggest reading the news from the latest 4 months, there are PLENTY of eye witness accounts from survivors or the terror attacks.
Maybe this will help you as well (NSFL with images and videos of raped and murdered women and men): www.thisishamas.com
Please get a grip of yourself and stop shaming yourself and others.