narcissist. People often discounted narcissism as relatively harmless because the term sometimes conjured the cliched image of a vain man staring longingly at his reflection in a pool of water or a mirror. However, Pine knew that narcissism was probably one of the most dangerous traits someone could possess for one critical reason: The narcissist could not feel empathy toward others. Which meant that the lives of others held no value to a narcissist. Killing could even be like a hit of fentanyl: instant euphoria from the domination and destruction of another. That was why virtually every serial murderer was also a narcissist.