“Technically, psychopaths aren’t legally insane. They know the difference between right and wrong. They are rational, often highly intelligent people. Some are capable of great charm. Indeed, the scariest thing about them is that they seem so normal. Their pleasant personalities are just a show. Underneath their masks of sanity, to use the famous phrase coined by psychologist Herbie Keckley, they are profoundly disturbed individuals. The most striking feature of the psychopathic personality is his utter lack of empathy. He is incapable of love, incapable of caring, incapable of feeling sorry for anyone but himself. Other people are simply objects to be exploited and manipulated for his personal profit and pleasure. As criminologist Edward Glover puts it in his book “The Roots of Crime”, psychopaths are outstandingly selfish, egotistical, and deceitful. Nothing matters to them but their own needs.”
From The Serial Killer Files, by Harold Schechter
This is the textbook definition of a narcissist, a corporate CEO, … and Donald J. Trump.