This is how they show up in workplaces with credentialed staff:
+ Public humiliation of victims
+ Intentional isolation of victims
+ Smear campaigns against victims
+ Encourages others to torment, harass, alienate, and/or humiliate victims
+ Sabotage victims
+ Invades personal privacy of victims (feeds into other techniques)
In broad strokes, these people can be identified through their use of social violence and deception. Whether their internal state of mind conforms to some pathology template is almost irrelevant.