Police engage in a massive manhunt to find a killer on a murder spree of revenge, taking the lives of his girlfriend, cousin, and a man he considers a father figure; once captured, he proclaims that he simply wants to be heard.
Authorities grow concerned when a 25-year-old woman reports her 50-year-old father and 6-year-old daughter are missing; police discover their dead bodies and uncover the truth: she is a psychotic killer.
Police search for a killer who guns down a man in a parking lot.
A vehicle plows down a 75-year-old military veteran on a country road in an apparent hit-and-run; when a young man confesses to the crime, detectives quickly learn they've encountered a psychopath with an intense desire to thrill kill.
When a young mother goes missing, her husband joins the search; police discover her dismembered body in a stack of bins; detectives find her husband to be a typical suburban dad, but learn a murderous psychopath lurks within.
A killer guns down a 46-year-old woman, and detectives discover that a fleeing Sheriff's Deputy is the assailant; less than 48 hours later, they arrest him and reveal an unrepentant psychopath capable of executing the love of his life in cold blood.
After the shooting deaths of father, mother, and two adolescent boys in their suburban Baltimore home, investigators realize it's not a robbery gone wrong but rather the execution of a loving family, done by a callous psychopathic killer.
An early morning fire inside an apartment complex soon reveals something worse, the dead bodies of a young woman and an infant boy; detectives find a psychopath who appears polite and gentle, then later as a pawn of imagined demons.
Police first arrest a man for discharging a firearm and soon discover dead bodies inside his apartment; detectives try to make sense of the bloody crime scene and a psychopath willing to murder those closest to him.
Experts look at a subset of psychopaths who are motivated by their heightened sexual urges and fantasies; this subset of offenders doesn't just enact physical violence but sexual violence toward their victims and is known as the sexual psychopath.
After the murder of a rural Virginia couple and the disappearance of their adult son, detectives wonder who could have acted with such rage; when the son resurfaces, investigators come face to face with a true psychopath.
When a loving husband turns up murdered in his Loveland, Ohio home, the prime suspect is his troubled wife, who claims to have little recollection; detectives uncover her story is nothing but the manipulation of a vindictive person.
Terror rocks an Ohio town when a mother, her two kids and a close friend vanish; investigators track down the prime suspect and uncover a house of horrors; detectives find themselves dealing with a psychopath with a bizarre obsession.
Police catch a break on three cold case murders when emerging DNA technology makes a stunning match, a 73-year-old man who's been in prison since 1993; detectives interrogate the frail man whose harmless façade is hiding a murderous psychopath.
A young man's confession to participating in a plot to murder another teenager stuns police in a small Florida town; detectives uncover a plot involving a manipulative ex-girlfriend and a young psychopath with the desire to kill.
A husband becomes the prime suspect when his wife goes missing as police discovers his checkered past; lacking a body or evidence of foul play, detectives hope to gain a confession from a man they realize might be a cold-blooded psychopath.
A teenage girl goes missing just before Christmas; detectives obtain a secret recording that uncovers an evil plot by a psychopath willing to do whatever it takes to satisfy their wicked needs and evil desires.
After the murder of a successful executive one night in Connecticut, her case goes cold; four years later, a troubled man appears, ready to confess; investigators uncover this was no ordinary murder and that he's an impulsive psychopath.
When being interviewed by police, psychopaths often use manipulation to thwart the investigation; experts explore the anatomy of the key manipulative tactics of psychopaths and how they try to utilize them for their own sinister gain.
On a quiet winter night, a mother finds her 22-year-old son horrifically dismembered in her basement. The lone suspect is the victim's ex-girlfriend, who is at her home in an emotionless state, with blood on her hands.
Weeks after an 18-year-old is reported missing by a friend, his clothes are found burned in a trash can behind a suburban house; witnesses lead investigators to a young man with a violent past; they quickly discover he had an accomplice.
A 19-year-old woman vanishes, and the suspect is a former high school classmate with whom she had been communicating days earlier. The family is weary, for the suspect has a notorious past filled with sexual deviancy and homicidal urges toward women.
A man finds his family slaughtered in their West Virginia home; the oldest son, 16-year-old Gavin Smith, is missing; he turns up hiding at his girlfriend's.
After meeting with her divorce attorney and estranged husband, a devoted mother of three vanishes into air; as friends and family desperately try to locate her, the husband instead plays a psychopathic game of cat and mouse with investigators.
Hikers in Portland discover the badly decomposed body of a raped and strangled young girl; A month later, another woman turns up brutally murdered in same fashion; the prime suspect is a homeless drifter harboring dark sexual fantasies.
Six months pregnant Martine Bernard's family reports her missing; days later, her father vanishes as well; when officers interview Martine's husband, Cassandritz Blanc, they find a calculating psychopath willing to do anything to cover his tracks.
When a 64-year-old grandmother does not return home from her morning walk, local police uncover that the man responsible for her disappearance is not only a pathological liar but a sexually deviant psychopath carrying out a twisted fantasy.
The idea that a child may possess the same wicked traits found in the most sadistic killers is every parent's worst nightmare; experts examine the early warning signs in psychopathic killers apprehended as teens and young adults.
A graduate student calls 911 to say she just shot her boyfriend, a 29-year-old attorney, in self-defense; police soon discover that her story doesn't add up and realize they are face-to-face with a psychopath.
Operators receive a call from a teenager claiming he stabbed his parents to death; unsure if the call is a Halloween prank, police race to the scene and discover it is no hoax and that the caller is a psychopath.
A teenager is arrested after his mother finds the body parts of a missing drifter in his bedroom; while in custody, police uncover that the suspect is a psychopath who idolizes serial killers.
A 911 operator receives a distressing call from a man repeatedly claiming that he just stabbed and killed two people. Police quickly discover that not only is the call genuine but that the caller is a violent and unpredictable psychopath.
In rural Missouri, police receive a haunting call from a 50-year-old man claiming he shot three people inside his home. Detectives uncover that this impulsive massacre has a motive and that the killer is a psychopath obsessed with control.
A concerned mother reports her 24-year-old son missing, as he fell under the spell of a 47-year-old widowed woman; detectives soon realize she's a sexual psychopath who has claimed the lives of more than one admirer.
A road rage incident turns deadly as an elderly man is beaten to death by a teenager who claims he was acting in self-defense; detectives not only find holes in his story but uncover that he is a remorseless and manipulative psychopath.
A mother awakes to find her two sons with their throats cut; their aunt's boyfriend confesses to his mother, and she wears a wire to capture her son; as he admits his guilt, it's clear how a psychopathic rage led to violence.
A woman finds her elderly brother dead in his bedroom with his throat slashed; uncovering the truth poses a challenge for detectives, as the individual responsible for killing him is a manipulative psychopath who craftily deflects blame.
A racially motivated serial killer on death row who targeted civil rights leader Vernon Jordan and pornography publisher Larry Flynt confesses to additional unsolved murders with the help of a shrewd female prosecutor.
A gunman shoots a man dead as he runs along a country road, and first responders find a witness standing next to the body with a strange story to tell; detectives unravel the lies of a callous psychopath who takes out his frustrations in bloodshed.
A man calls 911 with his dying breath, and first responders arrive to find him brutally murdered and stabbed 59 times; when detectives question his best friend, they uncover a tangled story of deception and jealousy that ends in psychopathic rage.
A killer shoots a young woman dead in her boyfriend's Orlando, Fla., apartment; hours later, he turns up in a hospital bed 500 miles away with a gunshot wound and a bizarre story that unravels to reveal he's a lying, callous psychopath.
Police find a 17-year-old female's dead body in a ditch with two gunshot wounds; the investigation centers on two friends of the victim claiming her death was an accident, but detectives uncover it was a thrill kill carried out by evil psychopaths.
A New Hampshire town reels after police arrest four teenagers for robbing and murdering a 42-year-old mother and maiming her 11-year-old daughter; detectives uncover two suspects with the characteristics of sadistic psychopaths.
A missing persons report leads police to a career criminal and his girlfriend; they uncover a twisted world of illicit schemes, macabre fantasies, and a puppet master manipulating young women down a dark path of sex, drugs and exploitation.
Experts examine unique characteristics of female psychopathic killers, whether they are as rare as people imagine, and their crimes.
A mother who calls 911 to report her 32-year-old son is threatening her turns up dead in her home; he becomes the only suspect, and when he turns himself in, his pragmatic retelling of the slaying isn't just cold-hearted, it's psychopathic.
A crash on a North Dakota highway leaves one passenger dead but the driver unscathed; when investigators see that the victim has stab wounds, they know there was foul play; detectives interrogate the driver.
Searchers for a missing woman find her brutally beaten body in a dilapidated house near her home; the case goes cold until a local teen steps forward to reveal that he's the killer.
After his conviction for the brutal slaying of his wife, a Florida inmate lays claim to another unsolved murder 17 years prior, revealing that he's a manipulative psychopath with a history of violence and an unquenchable thirst for revenge.
A man confesses to accidentally killing his best friend while cleaning his gun; during his interrogation, he stuns police by revealing that he's behind a long trail of bloodshed and is a serial killer who seems to consider himself an angel of mercy.
Behind a church lies a dismembered body burned beyond recognition; investigators identify the victim and receive a tip the suspect is female; a police interview reveals her as the most remorseless psychopathic killer they've ever seen.
When a beloved elderly couple disappears on a Sunday afternoon, one person knows their battered bodies lie dead at the bottom of a well; that man is the couple's son, who lives off his parents' charity yet takes pleasure in murdering them.
When Omaha, Neb., police officers arrest the driver of a stolen van, he shocks detectives by giving an unsolicited confession to a gruesome murder, and it is only the first of many chilling revelations.
When a priest from Florida goes missing, police focus on a troubled ex-convict whom he helped support; through multiple interrogations, a psychopathic killer reveals details of a twisted vengeance that escalates to a chilling murder.
A look inside the mind of psychopaths to discover when common pervasive traits deviate into violence, such as grandiosity, sadism, superficial charm, manipulation, lack of empathy and having a parasitic lifestyle.
The Tourniquet Killer terrorizes young girls across Houston, Texas, and when advances in DNA finally lead to his arrest, this psychopath eagerly confesses to multiple murders; weeks before his execution, he grants one interview in the spotlight.
A longtime nurse confesses to helping end the lives of numerous elderly patients at multiple nursing homes; detectives discover this is no angel of mercy; behind her unsuspecting persona lies a ruthless psychopath.
A failed actor returns home, ready to take out his rage on the weakest members of society; after killing four people, a chance encounter with police leads to his downfall; the interrogation room becomes the stage for this killer's final performance.
Burlington Police get a call that a man has killed his girlfriend; they arrive at the home to find the man calm while his girlfriend's body lies nearby; he explains that he has other victims, revealing a history of psychopathic sexual deviancy.
A woman dies in a brutal stabbing at home; police quickly locate the prime suspect, her ex-boyfriend Antoine Bynum; in his interrogation, he appears to have a psychotic episode until detectives discover it's merely the ruse of a deranged psychopath.
A 17-year-old steals a gun and begins a horrifying road trip; he murders two gas station attendants in cold blood, laughing as he shoots his victims in the face; when officers catch up with him, a haunting portrait of a burgeoning psychopath emerges.
Police respond to the site of a fiery car crash alongside a Michigan highway, where they discover the badly burned body of a young woman; investigators quickly realize this is no accident but a cold-blooded murder plot.
An unhinged man snaps, unleashing a furious rampage that would leave three women dead in their homes; a statewide manhunt ensues, which yields a misogynistic psychopath hell-bent on revenge.
In the course of a few hours, an unhinged man snaps, unleashing a furious rampage that leaves three women dead in their homes; a statewide manhunt ensues, which yields a misogynistic psychopath hell-bent on revenge.
A lone gunman shoots a young man and woman on their way home from the gym where they work; while interrogating a suspect, detectives learn that this is no random attack but the twisted plan of a deranged psychopathic stalker.
A young woman makes a frantic 911 call about a brutal home invasion, which results in the shooting of her mother and father; as police interview her, they uncover a secret double life and an elaborate web of lies spun by a maniacal psychopath.
The naked and mutilated body of a mother turns up at the bottom of a ravine in Baton Rouge, La.; when tire tracks lead investigators to a suspect, they encounter an undetected serial killer who confesses to butchering eight women over a decade.
When a graduate student suddenly goes missing, the family he's staying with immediately contacts police; days later, a horrific discovery forces investigators to face a rare kind of monster.
An officer responds to a 911 call placed by a robber on the lam who feels compelled to turn himself in; when the officer arrives at the scene, the criminal confesses to much more than breaking and entering.
A man crashes into the back of a woman's vehicle; officers respond to the scene only to find her car abandoned; witnesses point to the other driver, and detectives are horrified to discover a sadistic psychopath who admits to murder.
A former escort hires a hit man to kill her husband; she thinks she's committed the perfect crime when officers notify her that he is dead; little does she know that the police have been watching and recording her every move.
A woman's body is found strangled and partially nude off the side of a Connecticut country road; investigators apprehend a suspect in her murder, only to discover he's a prolific serial killer, responsible for the rape and the murder of eight women.
A college student disappears at the start of his freshman year without a trace, leaving his family and his girlfriend reeling; when authorities look to his best friend for answers, they uncover a love triangle gone wrong.
After coming home to find her parents on the floor bleeding, a woman's younger brother claims their father shot their mother before turning the gun on himself.
While being questioned in the abduction of an Anchorage barista, a young local businessman starts negotiating with investigators to reveal details of a depraved secret life as one of America's most meticulous and psychopathic serial killers.
Residents of a quaint village are terrified when a local innkeeper and two others are found brutally murdered; detectives must follow the depraved killer into the woods at night.
An unapologetic 14-year-old boy confesses to the murder of his best friend; twelve years later, he is back in court with a chance at a reduced sentence.
A charming 20-year-old wants to help authorities with a murder investigation; he claims to have met one of the three victims and says he has no knowledge of the crime, but detectives suspect otherwise.
Police question a man in the disappearance of his pregnant ex-girlfriend and her young son; they discover he has a terrifying capacity for violence.
A girl disappears after school and her last known steps are caught on surveillance cameras; these cameras lead investigators to two dark minds that carefully plotted one of the most sinister, depraved crimes imaginable.
A Colorado woman is missing and her roommate may be a rare female psychopath and a skilled manipulator.
A death row inmate grants an interview just weeks prior to his execution; bodies of a man's family members are discovered in the ashes of a house fire, and he is the main suspect in the murders.