No way to show he's innocent. No way of proving he's guilty. It's he said/she said.
Before going there, take a breath and think about what this culture is doing to advancement of the REAL women's movement. Any male executive from now on would be insane to want to network with females or offer them advancement opportunities if they saw potential in an up-and-coming talented woman. I see the return of the good-old-boy network, and the new-improved glass ceiling. Women will no longer get the experiences. It's once again the law of unintended consequences - just like we'll probably never again see a black President.