Los psicópatas (ahora conocido como trastorno de la personalidad antisocial en el DSM- IV ) ) son personas que no tienen conciencia o la empatía. Se estima .br National Geographic [The Psychopath Next Door 2014] Full Documentary Documentaries 2015 national geographic national geographic 2015 national .br A look at why serial killers lack remorse after slaying their victims. Dan Abrams sits down with Tommy Lynn Sells. SUBSCRIBE for the latest news and updates .br br A documentar about the different level of narsissism, from egomaniac to sociopath and psychopathic extremes. A must know for anyone. You may know .