There was a story about a guy that cut the airhose, or other drowned, his significant other in Australia. He returned to the boat and said a shark took her. They soon found her and he made an argument of crime of passion. AUS refused to extradite because he was eligible for and her family wanted the death penalty. AUS prosecuted him for the lesser crime of passion charge resulting in a few years in prison and seemingly a new life in AUS...
But glades, I had trained her to become an instructor before we parted ways and she is Russian, so I'm not confident that I would have swam away from such a battle intact...