Investigation Discovery A dismembered corpse floating in Thunder Bay opens up a vexing mystery. 2026-04-01 A small town reckons with its first murder in 34 years; a killer enters a woman's house through a hole in the wall and murders her, leaving an elderly woman dead in a bathtub. 2026-04-01 After someone abducts an Ohio undergrad, local police join the FBI; blood-soaked evidence accelerates the case and brings investigators face to face with human depravity. 2026-04-01 Two employees of Dayton, a bar in Ohio, are beaten to death; on the case, Det. Doyle Burke investigates a series of bizarre clues, including a citywide KKK rally and a mysterious confession letter from The Devil postmarked from Hell. 2026-04-01 In Connecticut, an employee arrives at his bank with a bomb strapped to him, claiming he will die if not given money; in Tennessee, more bank employees begin robbing their own banks, each claiming they have been held hostage and forced into the crime. 2026-04-01 Around midnight on October 9, 2017, Marlo Gulley vanishes from Chicago's South Side, and police tie his case to three violent crimes; Detective Childs joins Marlo's family to challenge the official narrative and seek the truth. 2026-04-02 A series of unsolved shootings and murders across Southern Florida leave a community terrorized under the threat of an unknown gang; rookie FBI Special Agent Jessica Box makes it her mission to identify and dismantle this deadly crew. 2026-04-02 A teen vanishes after visiting a neighbor, leaving years of questions. 2026-04-02 In Connecticut, an employee arrives at his bank with a bomb strapped to him, claiming he will die if not given money; in Tennessee, more bank employees begin robbing their own banks, each claiming they have been held hostage and forced into the crime. 2026-04-02 A series of unsolved shootings and murders across Southern Florida leave a community terrorized under the threat of an unknown gang; rookie FBI Special Agent Jessica Box makes it her mission to identify and dismantle this deadly crew. 2026-04-02 A teen vanishes after visiting a neighbor, leaving years of questions. 2026-04-02 Around midnight on October 9, 2017, Marlo Gulley vanishes from Chicago's South Side, and police tie his case to three violent crimes; Detective Childs joins Marlo's family to challenge the official narrative and seek the truth. 2026-04-02 After a young mother goes missing on the streets of Washington, DC, Detective Jackie Middleton must get to the bottom of a cold-blooded conspiracy. 2026-04-02 Arson investigators find a man dead in a burned-out home; the police investigation quickly uncovers victim number two; it's up to Detective Meroni to catch the killer before he strikes again. 2026-04-02 A teen vanishes after visiting a neighbor, leaving years of questions. 2026-04-02 Newlyweds Rick and Gail Brink are shot execution-style in their Michigan home; after 25 years, investigators find an error in the timeline that allows them to identify the killer with certainty. 2026-04-02 A man from Michigan is suspected of killing his fiancée, but investigators uncover an even more sinister plot under the surface of the crime. 2026-04-02 Even after a decade, the witnesses to Deborah Boothby's murder are still too afraid to talk. 2026-04-02 Newlyweds Rick and Gail Brink are shot execution-style in their Michigan home; after 25 years, investigators find an error in the timeline that allows them to identify the killer with certainty. 2026-04-02 A man from Michigan is suspected of killing his fiancée, but investigators uncover an even more sinister plot under the surface of the crime. 2026-04-02 Even after a decade, the witnesses to Deborah Boothby's murder are still too afraid to talk. 2026-04-02 Newlyweds Rick and Gail Brink are shot execution-style in their Michigan home; after 25 years, investigators find an error in the timeline that allows them to identify the killer with certainty. 2026-04-02 In 2011, a husband returns home to find his wife dead on the living room floor; he tells first responders she committed suicide, but it was murder; police zero in on the husband and what unfolds is one of the most outrageous tales in recent history. 2026-04-02 In 2011, a husband returns home to find his wife dead on the living room floor; he tells first responders she committed suicide, but it was murder; police zero in on the husband and what unfolds is one of the most outrageous tales in recent history. 2026-04-02 When a young woman goes missing, a rookie police officer's intuition leads to an intense investigation, as they race against the clock to find her. 2026-04-02 A 19-year-old coed leaves her apartment and never returns; when her body is found in a desert river basin, police and internet sleuths wonder if she was a victim of an alleged killer known as the Zombie Hunter. 2026-04-02 In May 2002, a couple goes missing in Ocean City, Maryland, almost as if they vanished into thin air, until a random, late-night burglary leads police to discover a tale of deception, brutality and savagery. 2026-04-02 When neighbors find a young teacher axed to death on Friday the 13th, a sleepy suburb fears a psychopath is loose; the bloody crime scene leads police to a most unlikely suspect, unfolding a story people still have to see to believe 40 years later. 2026-04-02 A new romance between two college students derails when a sadist attacks them during a nighttime walk by the railroad tracks; only one of them lives, and she turns out to be the sole survivor of a serial murderer known as the Railroad Killer. 2026-04-02 In 1995, a teen enrolls in a government trade program and meets a new boyfriend; as he draws her into the occult, tensions rise; when four people walk into the woods on a winter night and only three return, investigators uncover a story. 2026-04-03