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 to see what causes some people to choose murder as a means to notoriety.

Dr. Stone probes the science of revenge to profile revenge killers, looking for clues that might shed light on their motives.

With an army of loyal followers at their command, cult leaders 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.

Retrace the investigation of Charles Manson and how he convinced young, middle-class men and women to commit unthinkable acts of violence. Dr. Stone speaks with two of Manson's followers to gain insight into his power.

Killers' minds make irrational connections that result in horrifying acts of evil. Dr. Stone explores the nature of delusions and how they impact the twisted minds of killers that create false realities that lead to violence.

See how scheming killers, liars and con artists use their intelligence to get away with murder while deceiving their families, friends and the public. Dr. Stone evaluates the cases of individuals who have planned and schemed to commit heinous crimes.

Cannibals, vampires; murderers who feed on humans. Driven by desires and delusions, these criminals not only kill they also consume flesh and drink blood. Dr. Stone explores three cases in hopes to discover what motivates these heinous crimes

Do women kill less than men, or does the stereotype of being the gentler sex enable them to get away with more heinous crimes? Women who kill often target those closest to them. Dr. Stone's examination of murderous women highlights who is most evil.

Dr. Stone explores the possibility for killers to reform and change their lives. He uses his scale to determine if evil is a constant state or if redemption is possible?

Gangs lure members with promises of respect, money and power. From armed robbery to murder, they are responsible for some of the most brutal crimes. Forensic psychiatrist, Dr. Michael Stone examines the world's deadliest gangsters.

What makes a murderer? Can malfunctions in the brain compel someone to extreme cruelty? Are killers born or are they made? This hour follows Columbia University forensic psychiatrist Dr. Stone on his journey to better understand why people kill.

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

How do you track a killer? In this hour, Dr. Michael Stone, forensic psychiatrist at Columbia University, follows in pursuit of evil. He examines the process involved in identifying and capturing vicious killers.

Three master manipulators. Each committed acts of unspeakable evil…Taylor Helzer orchestrated brutal murders in the name of God. Sylvia White killed anyone she felt was in her way…including her four-year old stepson.

Control freaks seek to gain power through murder. Ronald Gene Simmons was a mass murderer who killed 16 people. Richard Angelo was a nurse who poisoned patients to save them. Billie Wayne Coble was a domineering father, and murderer.