Most Evil - Season 2 Episode 7 -

Some killers seek credit for their crimes. They play cat-and-mouse games with police, leave calling cards at crime scenes, and even send letters to newspapers. In each case, the quest for infamy leaves a devastating trail of destruction. From New York City's infamous "Son of Sam" to the terrifying spree of the DC Snipers, what causes some people to choose murder as a means to notoriety? With groundbreaking science on the origins of malignant narcissism, Dr. Stone profiles three murderers whose need for glory and control led them to incredible evil.