Yes, my theory was drugs escalated whatever they were doing and made it more intense. I mean, the guy was a rugby player, so I'm assuming he was quite strong and had a high pain tolerance? She could have fought back with an object, we have no idea (and I think I'm probably thankful for that, to a degree) what actually went on. It could have started out as mildly kinky, or just sex and gotten way out of hand and violent due to drugs.
HE could have been doing something BDSM with the other couple or someone else (conjecture), or asked her to do it to him,which could have resulted in bruises? A rugby player would probably have bruises an ordinary citizen would not, right? (Although, I would think that would be easy to discern, but this was their first day of vacation, so maybe not?)
He could have fallen on or through something too? I really don't know what to think? He looks much bigger than everyone else in the video, but that is my impression only, and for all we know, other ppl may have been there.