An unapologetic 14-year-old boy confesses to the murder of his best friend. Twelve years later, he's back in court with chance at a reduced sentence. Has this 26-year-old really changed? Or is he the same meticulous, cold-blooded killer he always was?
A crash on a North Dakota highway leave a passenger dead but the driver unscathed. When investigators discover that the victim has stab wounds, they know there was foul play.
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 not only the killer but also a manipulative psychopath with a thirst for violence.
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 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. First responders find him murdered, stabbed 59 times. When detectives question his best friend, they uncover a tangled, sick story of deception and jealousy that explodes in psychopathic rage.
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 who are not ordinary criminals but sadistic psychopaths.
When women kill, it's shocking to many of us. However, female psychopaths may not be as rare as we imagine. We'll examine some of the unique characteristics of female psychopathic killers, and explore the horrific crimes that they've committed.
A frantic graduate student calls 911 to say she just shot her boyfriend in self-defense. Police soon discover that her story doesn't add up and realize they are face-to-face with a remorseless, calculating psychopath.
A concerned mother reports her 24-year-old son missing. He has fallen 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 teenage girl goes missing just before Christmas. Unable to find her, 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.
When being interviewed by police, psychopaths often use manipulation to thwart the investigation. Here, experts explore the anatomy of the key manipulative tactics of psychopaths and how they try to utilize them for their own sinister gain.
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 missing. Police discover their dead bodies and uncover the shocking truth she is a psychotic killer.
A psychopathic killer confesses decades after the murders of three women.
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.