Different Paraphilias & Society

Hi,
I am doing research on different paraphilias (sexual interests in objects, situations, or individuals that are highly atypical) and I am seeing people with a different angle now. I have a few confusions. What are your views about:
i) Are the people, who rape others, Biastophile? Because in normal scenario, I/you wouldn't want to rape any girl.
ii) Are the people who murder others brutally, Sadists/Piquerist? Is the producer of the movie Saw, a Sadist/Piquerist?
iii)…
Different Paraphilias & Society

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