Comment by psyc

Whenever I try to research this subject, I just give up for the vagueness, lack of consensus, and general lack of solid information. I'm sure there's some out there - I just can't find it on the Internet. In particular, I'm always frustrated about 'psychopaths' (empathy-lacking, narcissistic, manipulative) being wholly lumped in with violent predators (serial killers, who seem to get visceral gratification from hunting and physically destroying other humans).