Investigation Discovery Aileen Seiden's beaten body is found near a highway; the next day, a bloody motel room is discovered nearby, prompting investigators to see if the two are connected. 2026-04-20 After a shooting, the detectives investigate a victim with a history of domestic complaints; as the victim fights for his life, the female shooter claims self-defense; her attempt to hide evidence raises doubts about her true motive. 2026-04-20 Aileen Seiden's beaten body is found near a highway; the next day, a bloody motel room is discovered nearby, prompting investigators to see if the two are connected. 2026-04-20 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. 2026-04-20 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. 2026-04-20 After a shooting, the detectives investigate a victim with a history of domestic complaints; as the victim fights for his life, the female shooter claims self-defense; her attempt to hide evidence raises doubts about her true motive. 2026-04-20 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. 2026-04-20 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. 2026-04-20 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. 2026-04-20 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. 2026-04-20 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. 2026-04-20 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. 2026-04-20 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. 2026-04-20 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. 2026-04-20 After a shooting, the detectives investigate a victim with a history of domestic complaints; as the victim fights for his life, the female shooter claims self-defense; her attempt to hide evidence raises doubts about her true motive. 2026-04-20 While investigating the execution-style slaying of a retired Colorado mortgage broker, detectives put his nearest and dearest under the microscope. 2026-04-20 When a Missouri insurance salesman is shot dead, the list of suspects includes his left-behind wife and several clients. 2026-04-20 When a wealthy Missouri couple is violently murdered, the key to catching the killer lies in retracing a missing jar of rare coins. 2026-04-20 While investigating the execution-style slaying of a retired Colorado mortgage broker, detectives put his nearest and dearest under the microscope. 2026-04-20 When a Missouri insurance salesman is shot dead, the list of suspects includes his left-behind wife and several clients. 2026-04-20 When a wealthy Missouri couple is violently murdered, the key to catching the killer lies in retracing a missing jar of rare coins. 2026-04-20 While investigating the execution-style slaying of a retired Colorado mortgage broker, detectives put his nearest and dearest under the microscope. 2026-04-20 For the first time, a former colleague breaks down how one housewife built her multimillion-dollar empire on deception; Taylor Armstrong sheds new light on her husband's alleged abuse and the unsettling rumors that still surround his death. 2026-04-20 Fan obsessions can turn terrifying for superstars like Miley Cyrus, Taylor Swift and Justin Bieber; family members of stalkers reveal the dangerous side of fandom. 2026-04-20 A home intruder abducts a 60-year-old woman in the night; local sheriffs search relentlessly until they discover another horrifying attack just ten miles away that fits the same profile; is there a serial predator haunting Florida's Gulf Coast? 2026-04-20 Interviews with boy band members including Boyz II Men, Backstreet Boys and NSYNC discuss aspects of manufactured superstardom. 2026-04-20 "Survivor" contestant Joe Hunter says his sister, whose death was officially ruled a suicide, was murdered. 2026-04-21 For the first time, insiders reveal dark secrets behind the #1 talk show. 2026-04-21 Questions and accusations fly after savvy entrepreneur and mother of five, 52-year-old Dee Warner, vanishes from her rural Michigan home. Authorities struggle for answers, until one day they find her, closer to home than anyone could have imagined. 2026-04-21 For the first time, insiders reveal dark secrets behind the #1 talk show. 2026-04-21 Questions and accusations fly after savvy entrepreneur and mother of five, 52-year-old Dee Warner, vanishes from her rural Michigan home. Authorities struggle for answers, until one day they find her, closer to home than anyone could have imagined. 2026-04-21 Fan obsessions can turn terrifying for superstars like Miley Cyrus, Taylor Swift and Justin Bieber; family members of stalkers reveal the dangerous side of fandom. 2026-04-21 Questions and accusations fly after savvy entrepreneur and mother of five, 52-year-old Dee Warner, vanishes from her rural Michigan home. Authorities struggle for answers, until one day they find her, closer to home than anyone could have imagined. 2026-04-21 When a Missouri insurance salesman is shot dead, the list of suspects includes his left-behind wife and several clients. 2026-04-21 When a wealthy Missouri couple is violently murdered, the key to catching the killer lies in retracing a missing jar of rare coins. 2026-04-21 Investigators uncover a disturbing story while examining a 16-year-old girl's death. 2026-04-21 A young couple is gunned down in broad daylight in their driveway in front of their toddler; investigators uncover a web of clues spanning a custody battle, a rental car full of guns and a conspiracy. 2026-04-21 Investigators uncover a disturbing story while examining a 16-year-old girl's death. 2026-04-21 A young couple is gunned down in broad daylight in their driveway in front of their toddler; investigators uncover a web of clues spanning a custody battle, a rental car full of guns and a conspiracy. 2026-04-21 Investigators uncover a disturbing story while examining a 16-year-old girl's death. 2026-04-21 When Sarita Anderson begins feeling ill, she thinks it's just the flu at first; she never suspects that the man pretending to love and nurse her back to health is actually the monster responsible. 2026-04-21 When George Yzaguirre kills himself in prison, he takes his secrets with him, and his ex-wife, Jennifer Meyer, is left to wonder how many of her memories might hold the keys to unsolved crimes and whether she'll ever know the truth about him. 2026-04-21 The story of Morgan Metzer, a woman who fell victim to an elaborate assault and rescue drama orchestrated by her ex-husband. 2026-04-21 People recount their horrifying true stories about living side-by-side with sociopathic friends or family who go on to commit heinous crimes. 2026-04-21 At 16, Roxie rushes into marriage; her husband manipulates and threatens her nearly every day; she leaves after 30 years but pays a terrible price. 2026-04-21 When Kristyn escapes her toxic home and rageful mother, she leaves behind her sister and grandmother; it's a decision that still haunts her. 2026-04-21 NSYNC's Joey Fatone exposes the secret machinery behind manufactured superstardom - and its devastating human cost. Candid interviews with artists from Boyz II Men, 98 Degrees, and others reveal the darker realities of power struggles and exploitation. 2026-04-21 NSYNC's Joey Fatone exposes the secret machinery behind manufactured superstardom - and its devastating human cost. Candid interviews with artists from Boyz II Men, 98 Degrees, and others reveal the darker realities of power struggles and exploitation. 2026-04-22