This Docco is old and there have been a lot of developments in finding the answer to one of humanities greatest questions "Why are some people evil?"
Are they born evil? or are they made?
Any media on the topic of Psychopathy that bases its work on Robert Hare (Canadian Psychologist that created the first tool for identifying and measuring degrees of Psycopathy) is the real thing.
Robert Hare's work is basically the gold standard in the field, he is the John Douglas of Psychopathy.
I studied Hare in my training, while working with Psychopaths. I attribute my survival in those settings greatly to Hare's research and the basic fundamentals that these people are hard wired first and foremost, born with a gene for Evil, thereafter environment can only either be somewhat neutral towards their life path or aggravating.
The great man Hare is in this docco (yes I am an academic fanboi) however where this docco varies from anything I have ever seen on the topic is that they break the rules and softly diagnose people like O.J. Simpson and Robert Maxwell (this is a big NO NO) but these guys are the world leaders in the field and somewhat do not give a shit...they have seen too much to stay in the neat and tidy bounds of political correctness and academic decorum.
We now know with brain scans etc that Hare was right.
View: https://youtu.be/wdElQtp-Bps?si=nTMTYSUzb7o7ojwh