Investigation Discovery Tammy Moore's loyalty to her mother, Marie, is absolute; when police arrest Marie for murder, Tammy lies to protect her; a look back at the horrific events of her youth forces Tammy to see her mother in a new, terrifying light. 2026-08-15 Victoria and Christine Lisowski live in fear of their mother, Sungnam Kwon-Lisowski; they never imagine that this Christmas, they'll feel lucky to survive the holiday and their mother's crazed vengeance. 2026-08-15 Christina Thomas believes her brother, John, the first time he nearly kills a woman; she forgives him when he murders another; but when it happens again, she wonders why she trusted him and how she missed the signs he was really a devil in disguise. 2026-08-15 Sara Pitcher thinks Shawn Spink is a man of God, but she'll soon endure three-and-a-half hours of pure terror to save herself from the darkness within him; police believe Sara's survival is a miracle -- even so, her life will never be the same. 2026-08-15 Everyone knows Lisa and Kevin Knoefel as kind and loving parents who foster children in need, like 16-year-old Sabrina Zunich; their selfless act ends in a shocking murder at the hands of the troubled teen, who is a pawn in a twisted plot. 2026-08-15 Family members find beloved funeral director Byron Griffy brutally murdered; as investigators delve into Byron's life, they uncover startling revelations about his grandson, handyman and two local celebrity brothers, each emerging as a possible suspect. 2026-08-16 Police uncover disturbing truths about the town's prominent brothers, including their possession of a missing coin collection. One brother's affair with a local prison guard leads to a shocking confession of a secret relationship - and a sudden death. 2026-08-16 The trial for Byron Griffey's murder begins and an investigator uncovers numerous new leads and suppressed evidence that casts doubt on the eventual conviction; a surprise sentence outrages many and leaves questions unanswered. 2026-08-16 Everyone knows Lisa and Kevin Knoefel as kind and loving parents who foster children in need, like 16-year-old Sabrina Zunich; their selfless act ends in a shocking murder at the hands of the troubled teen, who is a pawn in a twisted plot. 2026-08-16 Family members find beloved funeral director Byron Griffy brutally murdered; as investigators delve into Byron's life, they uncover startling revelations about his grandson, handyman and two local celebrity brothers, each emerging as a possible suspect. 2026-08-16 Police uncover disturbing truths about the town's prominent brothers, including their possession of a missing coin collection. One brother's affair with a local prison guard leads to a shocking confession of a secret relationship - and a sudden death. 2026-08-16 The trial for Byron Griffey's murder begins and an investigator uncovers numerous new leads and suppressed evidence that casts doubt on the eventual conviction; a surprise sentence outrages many and leaves questions unanswered. 2026-08-16 Teresa Holman spends much of her childhood wishing her father, Freddie Bowen, would die for the things he does to his family, but when presented with a chance to get her wish, the choice she makes has unforeseen consequences and leads to tragedy. 2026-08-16 When Terry Patzer hears what police discovered at Russell Tillis' house of horrors, memories of the nine years she spent married to him come flooding back; she cannot explain how her former lover became so twisted. 2026-08-16 Everyone knows Lisa and Kevin Knoefel as kind and loving parents who foster children in need, like 16-year-old Sabrina Zunich; their selfless act ends in a shocking murder at the hands of the troubled teen, who is a pawn in a twisted plot. 2026-08-16 After a Missouri college student is murdered, detectives receive an anonymous tip that turns the college town upside down. 2026-08-16 In the brutal slaying of a Dallas art student, investigators zero in on a suspicious trio of unusual suspects. 2026-08-16 Investigators look into the case of Missy Atkins, who was ambushed and shot in her bedroom. 2026-08-16 After a Missouri college student is murdered, detectives receive an anonymous tip that turns the college town upside down. 2026-08-16 In the brutal slaying of a Dallas art student, investigators zero in on a suspicious trio of unusual suspects. 2026-08-16 Investigators look into the case of Missy Atkins, who was ambushed and shot in her bedroom. 2026-08-16 After a Missouri college student is murdered, detectives receive an anonymous tip that turns the college town upside down. 2026-08-16 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. 2026-08-16 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. 2026-08-16 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. 2026-08-16 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. 2026-08-16 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. 2026-08-16 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. 2026-08-16 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. 2026-08-16 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. 2026-08-16 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. 2026-08-16 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. 2026-08-16 A Russian immigrant's stabbing leads to his wife: beautiful, charming, and lethal; a runaway teen aids her boyfriend in slaughtering grandparents, as manhunts close in, both women's facades crumble, revealing the chilling minds of killers. 2026-08-16 Josh Clark takes what he wants; his family loves and supports him, but he's intent on destroying them; no one sacrifices more for him than his grandmother, yet she's the one who suffers his wrath; now, his mom and brother want him to tell them why. 2026-08-16 When the medical board strikes off popular Arkansas pain doctor Randeep Mann amid allegations about his practice, they also uncover a monster; he stops at nothing to regain his practice, unleashing an explosive plot to regain power. 2026-08-17