Rolfe
Adult human female
It's a judgement about his behaviour at the time of death. He was up close and personal with her until she died. I don't think anyone has claimed that he left what appeared to be a living, breathing, responsive partner to go into the shower and she died later. At the point he "disengaged", shall we say, she must have been as good as dead.
A partner who was not negligent would have been careful to check that his date was OK after he'd choked her into unconsciousness. He wasn't. She pretty much died in his arms or died under him, and he didn't even notice. He just got up and went into the shower. That pretty much proves negligence as far as I can see. It is not behaviour consistent with someone who wasn't criminally negligent.
A partner who was not negligent would have been careful to check that his date was OK after he'd choked her into unconsciousness. He wasn't. She pretty much died in his arms or died under him, and he didn't even notice. He just got up and went into the shower. That pretty much proves negligence as far as I can see. It is not behaviour consistent with someone who wasn't criminally negligent.