[telchar]

Was he ever known to display any great amount of empathy? I don't know as much about him as many here I'm sure, haven't read the biography. But I have known people with BPD. If the answer to that question is no then I would think sociopathy would be more likely than borderline.

They're both in the same cluster of personality disorders but borderline tends to be associated with more self-loathing and self-destruction since there is still harmful and hurtful behavior like sociopathy but also a good deal of empathy related to an overactive amygdala. Those mix like fuel and air. Sociopaths have reduced empathy so they find harming others and transgressing much easier to live with and move on, so they tend to be less self-destructive as long as they're somewhat high-functioning. They can both be quite manipulative but in my experience people with BPD are less likely to capitalize on it.