For every sadistic psychopath there were signs. Charm. Narcissism. Lack of empathy. Impulsiveness. Manipulation. Deception.
Police find a taunting note at the crime scene of a murdered woman.
A brutal killer is on the loose in a quaint Maine village.
A 26-year-old convicted of murder at age 14 requests a reduced sentence.
A man has sinister motives for wanting to assist in a murder investigation.
A pregnant woman and her son disappear, and police question her ex-lover.
Police retrace the steps of a girl who never returned home from school.
Investigators fear that a missing woman's roommate could be a psychopath.
A death row inmate agrees to a final interview weeks before his execution.
A heartless gunman shoots a young couple with devastating consequences.
A home invasion leads to the revelation of a shocking double life.
In Louisiana, a sadistic serial killer butchers eight women over a decade.
Police find a man dead and interview his family, but one member is missing.
A graduate student's disappearance leads police to a diabolical maniac.
A man turns himself in for robbery, but his real crimes are so much worse.
A sadistic young woman butchers her ex-boyfriend then defiles his body.
A young man turns up missing after a chance encounter with two psychopaths.
A young woman vanishes, and the suspect is her troubled former classmate.
A 16-year-old slaughters his family so that he can see his girlfriend.
After his wife vanishes, a psychopath plays cat and mouse with detectives.
An unassuming drifter harboring a dark past murders two young women.
A failed polygraph reveals that a caring boyfriend is a total psychopath.
Two missing people reveal a psychopathic family member's twisted plan.
A grandmother disappears, and the lone suspect is an erratic young man.
Experts review cases of blooming psychopathic killers from an early age.
A sadistic killer on death row grants one final interview before execution.
A mother claims not to know how her children died, but she knows the truth.
A nurse confesses the horrors she inflicted on numerous elderly patients.
An actor's killing spree becomes fodder for his interrogation performance.
A man kills his girlfriend but soon reveals she is not his first victim.
A man fakes psychosis to avoid responsibility for killing his girlfriend.
A 17-year-old takes a deadly road trip that exposes his inner psychopath.
A blazing car accident turns out to be the result of a devious murder plot.
A roommate relationship turns dark and deadly when one man seeks revenge.
An elderly man's murder leads detectives to a cunning female psychopath.
A racially motivated serial killer confesses to killing additional victims.
A ruthless psychopath has a penchant for feeding victims to her pigs.
The witness to a man's deadly shooting tells detectives a bizarre story.
A woman lies dead, and her lover suffers from a gunshot 500 miles away.
A dying man tells 911 the friend who stabbed him is, "the angel of death."
Two thrill-seeking students brutally murder their 17-year-old friend.
Depraved teenagers attack a mother and daughter in their sleep.
A puppet master lures women into a deadly world of sexual exploitation.
Experts explore the unique characteristics of female psychopathic killers.
A graduate student claims she killed her abusive boyfriend in self-defense.
On Halloween morning, a teenager butchers his parents at random.
A teen plays out his sadistic fantasies of murder on an unassuming drifter.
A troubled culinary student murders his classmate's family in their sleep.
A controlling husband murders his ailing wife and her parents.
A widowed woman lures vulnerable young men to her home of horror.
A road rage incident turns deadly at the hands of a psychopathic teenager.
A mother helps capture her son after he admits to killing two young boys.
Experts explore cases of psychopathic killers known as family annihilators.
An arrogant woman believes she's committed the perfect crime. She is wrong.
An obsession with a web-cam model leads to the annihilation of a family.
A prolific serial killer brags on tape about strangling eight young women.
Police suspect a love triangle is the cause of a student's disappearance.
A heartless teenage killer proves that evil has no age limit.
Police negotiate a deal with a serial killer in order to solve cold cases.
A mother is found dead after reporting her son to the police. When he turns himself in, his confession isn’t just cold-hearted, it’s psychopathic.
A crash on a North Dakota highway leaves one passenger dead but the driver unscathed. When police investigate, they quickly suspect foul play.
A missing woman’s brutally beaten body is found in a dilapidated house near her home. The case goes cold until a local teen makes a sickening claim.
After his conviction for brutally slaying his wife, a Florida inmate says he has killed another woman, revealing he’s a psychopath with a history of violence.
A man who “accidentally” kills his friend admits he is a serial killer.
A man finds his girlfriend and her mother murdered in their beds at night. He calls 911 for help – but police discover his urge to seek revenge.
When a beloved elderly couple disappears, detectives discover their son not only lived off their charity but also took sadistic pleasure in murdering them.
When a priest from Florida vanishes, police focus on a troubled ex-convict he was helping. A psychopathic killer reveals a twisted vengeance that led to murder.
Traits of psychopathy lurk in us all, but for whom does it lead to murder?
A psychopathic son wanting control murders his middle-aged parents.
A vindictive psychopathic wife murders her husband.
After a couple's murder, police find a fantasy killing by two psychopaths.
Four people disappear, revealing a psychopath with a bizarre obsession.
After 30 years, a DNA match solves “The Package Killer” murders.
A teenager falls victim to the murderous desires of a group of teenagers.
A woman disappears, and detectives find she's married to a psychopath.
A young girl disappears, and detectives find a psychopath who duped her.
An impulsive psychopath randomly kills a successful female executive.
Experts explore the anatomy of the key manipulative tactics of psychopaths.