For every sadistic psychopath there were signs. Charm. Narcissism. Lack of empathy. Impulsiveness. Manipulation. Deception.
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.
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 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?
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 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.
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.
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 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.