Psychopathy, sociopathy and narcissism, what in the U.S. jurisdiction are called 'Cluster B personality disorders', are something entirely different from merely 'bad behavior'. Humans who who are characterized by traits like this, have a social attitude fundamentally different from that of normal humans, and even have differences in the physical brain structure, compared to normal people.

Because psychopaths generally cannot be 'cured', and have abnormalities that are not random but uniform or typical, some researchers suggest psychopaths should be considered a taxon, that is a sub-species within the main human species. 

Links in English

• Inside the brains of psychopaths https://newatlas.com/psychopath-brain-mri-study/50365 
• Gene Wars – Part 1 https://www.youtube.com/watch?v=WmhT1o0UBGQ 
• Psychopathy as a Taxon: Evidence That Psychopaths Are a Discrete Class – https://www.researchgate.net/publication/14998345_Psychopathy_as_a_Taxon_Evidence_That_Psychopaths_Are_a_Discrete_Class
• Surviving Narcissism – https://www.youtube.com/c/SurvivingNarcissism

Norske linker

• No Longer Victims Norway https://www.facebook.com/profile.php?id=100067148405452
• Edvin Vik https://vk.com/edvin_vik
• Radio Bergen https://web.archive.org/web/20160304201457/http://www.radiobergen.org