Most Evil

What happens when a jealous lover turns into an enraged killer? From impulsive crimes of passion to a terrifying revenge crime spree, Dr. Stone unravels how the psychology of love can become the psychology of murder.

What happens when delusion, obsession and jealousy collide? What can explain this relentless drive, and what triggers violence in the mind of a stalker? Neuropsychology is explored on the cases of four notorious stalkers.

Delusional minds are profiled using cutting-edge science that may finally reveal the neurological cause of schizophrenia.

Cold cases, including that of the infamous Black Dahlia, are reopened as Dr. Stone profiles killers who may still be at large. He ventures into prison to meet face-to-face with alleged Lipstick Murderer Bill Heirens.

Dr. Stone unearths the psychology of persuasion and indoctrination by interviewing surviving cult member Tim Carter, one of only three to survive the 1978 Jonestown massacre.

From Charles Whitman, the Texas clock-tower sniper, to Charles Starkweather, the real "Natural Born Killer," science reveals new clues into the psychology behind these seemingly senseless crimes. What links these acts of evil?

With groundbreaking science on the origins of malignant narcissism, Dr. Stone profiles murderers whose need for glory and control led them to incredible evil, trying to find what causes some people to choose murder as a means to notoriety.

What lies at the intersection of evil and intelligence? Dr. Stone, armed with new scientific discoveries on early brain development, analyzes Kemper, Kaczynski and Kraft to find out what made these killers use their cunning for crime.

Seeking out anyone who reminds them of the enemy, they kill again and again. Dr. Stone probes the science of revenge to profile these killers, looking for clues that might shed light on their motives.

With an army of loyal followers at their command, they have the power to act out their most deluded fantasies on a scale that rivals the worst serial killers. Dr. Stone analyzes three of the 20th century's most deadly cult leaders.

Charles Manson is synonymous with pure evil. Other criminals have racked up higher body counts, yet this cult leader reigns over all the savage killers who plague our nightmares. This hour examines Manson and his "family" from several points of view.

They misperceive the world and draw fatal conclusions. They are plagued by distorted perceptions, driven to murder by false beliefs. Forensic psychiatrist Dr. Michael Stone of Columbia University probes the minds of delusional killers.

Forensic psychiatrist Dr. Michael Stone of Columbia University investigates the motives and methods of scheming killers whose tales are filled with forgery, fraud and deceit.

Cannibalism and vampirism awaken our most intense fears. Murderers that feed on human flesh and blood violate fundamental boundaries between right and wrong. Forensic psychiatrist Dr. Stone turns his attention to cannibals and vampires.

Although almost 90 percent of all murders are committed by men, when women kill, they target those closest to them. Forensic psychiatrist Dr. Stone focuses on the motives, methods and minds of murderous women.

Redemption, the atonement of guilt -- is it possible for killers to reform, to change their lives and themselves? Forensic psychiatrist Dr. Michael Stone explores the stories of killers who claim to have reformed their criminal ways.

Gangsters must reject society's rules and live by a different code of conduct, one in which crimes of all sorts, even murder, are acceptable behaviors. Forensic psychiatrist Dr. Michael Stone takes a closer look at murderous members of notorious gangs.

Are killers born or are they made? Forensic psychiatrist Dr. Michael Stone is on a journey to better understand why people kill. We hear from a variety of scientists about their work and examine possible scientific explanations for violent behavior.

Brutal killers. What motivates their heinous crimes? Columbia University forensic psychiatrist Dr. Michael Stone uses one-on-one interviews to gain insight into the motives, methods and minds of murderers.

Detectives must delve into the criminal mind to identify a killer and prevent future acts of violence. Dr. Michael Stone, forensic psychiatrist at Columbia University, examines the process involved in identifying and capturing vicious killers.