I dove into the science of psychopathy a few years ago after a family incident where my father imploded his life and much of the family's through self-destructive activities and there is actually a bunch of smart people studying the neuroscience of pyschopaths.

Two great books to start with:

- The Science of Evil: https://www.amazon.com/Science-Evil-Empathy-Origins-Cruelty/...

- The Psychopath Whisperer: The Science of Those Without Conscious: https://www.amazon.com/Psychopath-Whisperer-Science-Without-...