What I was meaning to say in my comment was that the rumors and accusations relating to his sister, even if entirely true, are not monumental enough of a personal scandal to explain how the board behaved while firing him.
They'd probably still fire him, but would have done so in a very different way.
I'm virtually 100% sure he did it after just looking into it today so I can see exactly what you're saying about people backflipping out of cars and stuff to get away from it.