psychopath

In the last 6-12 months, I have ended up meeting a few people via connections who had narcissistic behavior in them. Some will not even admit their wrongdoings. At times, they will act super sweet to get their work done. The agenda would be to get what they want. These kinds of people are the reason for our unstable society. Since most of us grew up in a protected society, we are not able to comprehend what these psychopaths are up to. They can go at any length to destroy you. They will lie, deceive, play the victim card, or try to boost their stature to make you feel low.

You should deal with such people with an iron fist and know them that we know their moves. That is the only way they will leave us. Otherwise, they will keep manipulating us, mare mortals. 

a mentally unstable person

a person having an egocentric and antisocial personality marked by a lack of remorse for one’s actions, an absence of empathy for others, and often criminal tendencies

source: Webster

There is no cure for psychopathy. No pill can instill empathy, no vaccine can prevent murder in cold blood, and no amount of talk therapy can change an uncaring mind.

source: Yale