I can't speak to who is lying and who is telling truth, but the reports from the Star from the 2 women seem completely unrelated to the talk of him being involved in BDSM. They say that when they came in the door he punched them and choked them. I know somewhat about BDSM and that sounds like nothing more than common assault. I don't believe a closed fist is ever used during BDSM, certainly not in anything I've ever seen or heard of. Ghomeshi's BDSM is described as role playing and 'mild 50 shades of gray' but a closed fist would be very extreme. The essence of the 'sm' portion of 'bdsm' is to cause pain but no harm and a closed fist causes harm, or at least threatens it. Some people are a fan of choking during orgasm, but to choke someone when they step in the door seems like something related to psychiatric problems, not sexual fetishes. Dominance and submission games generally involve words, more than actions. You 'dominate' by force of personality, not by physically overpowering someone. I've seen nothing described which I would identify as relating to bdsm or Dom/sub lifestyles - consensual or not.