IMO, all of this about Grace is a distraction and nothing more. It wouldn't matter (to my way of thinking) if she had a one night stand every night of her trip with different men asking each of them to choke her. She could even have asked this defendant to choke her to death, and it would be irrelevant. Mud on the wall. It's his hands that did it, not her own. They are basically saying he's not responsible for what he did but not explaining why. There is a point at which consent ends (if it was ever given, which there is no evidence of) and I would suggest, with her arms pinned down and her air supply cut off, that must be the point, if not before. The point beyond having capacity to consent and no longer participating in the act. The point beyond which death ensued, minutes later, because of his sustained grip on her. Just count to 90 or 240, or more, and see how long that is. I do not believe he didn't know Grace could not breathe and was no longer participating.