Here we go ...

[Aegon]

Not all brain "glitche"(s), including lack of empathy, are genetic.

There is a genetic picture to these cases ... in fact it was brought up in the vid. Granted, some problems seem to pop up from out of nowhere, but in the above case, it was in the family.

There is much more to "evil" than this. Do you think every single Nazi soldier was born a psychopath, or did evil deeds because of brain chemistry that "popped up from out of nowhere?"