If BG has a Dissociative disorder, I'd think it would be more likely to be the second type. He may be able to do something as gruesome as this and return to his normal life without showing any indication that anything out of the ordinary happened. He wouldn't be likely to feel any more guilt than he would if he had watched a movie that showed an assault and/or murder/s done by someone else. He would know he had done it, but he wouldn't have the normal emotions associated with the acts.
Perfect description for how I pictured BG, in my scenario!
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