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Dateline
Season 33 • Episode 21 • Deadly Obsession
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Dateline Season 33, Episode 21: Deadly Obsession
Mike Sisco and his fiancé Karen Harkness are found shot to death in their Topeka duplex in 2002. A years-long search for the killer and three criminal trials over two decades reveals strained dynamics within one victim’s family. Watch Dateline Season 33, Episode 21 Deadly Obsession in HD free online. Enjoy high-quality streaming of Dateline Season 33, Episode 21 and share your thoughts in the comments below!
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Episodes
34 episodes
The Butterfly
A young Fairfield, Ohio, woman, 21-year-old Katelyn Markham, vanishes one summer night in 2011, prompting her community to conduct a massive search. When her skeletal remains are found in Indiana two years later, investigators question her friends and family to uncover her killer, but it takes 12 years and a detective with dogged determination.
84 min
Wrong Turns
A new father is found dead on the side of a road. Then the stabbing of a young woman leads police on a high speed chase. Could these two chilling murders be connected? Josh Mankiewicz reports.
83 min
Down the Rabbit Hole
In Humble, Texas, a frantic 911 caller, 16-year-old Keri Murphy, reports hearing her mother's screams after an intruder entered their home. When first responders arrive, they find Mary Ann Murphy dead after receiving more than 70 stab wounds. What happened on that dark summer night?
84 min
The Night of the Nor'easter
A monster storm had rolled into Canton, Massachusetts, and Karen Read's boyfriend, police officer John O'Keefe, was dead, his body discovered in front of another officer's house. Karen was charged with John's death. Was she to blame?
83 min
Deadly Omission
In Marietta, Georgia, a woman's murder shines a light on an unsolved mystery from years earlier. As the connection between the two cases becomes clear, a long-hidden truth surfaces. Could a master manipulator be behind both crimes? Andrea Canning reports.
83 min
After the Halloween Party
After a 2011 Halloween party at a country club in Dyersburg, Tennessee, Karen Swift, a wife and mother of four, vanishes. Nearly a decade later, a private investigator claims to uncover chilling new clues that turn the town upside down.
84 min
The Menendez Brothers: Chance at Freedom
Latest developments and new interviews in the high-profile murder trial of Lyle and Erik Menendez; a scripted show reignites public interest in the case.
84 min
Deadly Dance
Dubbed the 'Black Swan' case, a former ballerina falls in love with a man 30 years her senior, but when their love story spirals out of control, one of them winds up dead.
41 min
The Killer Among Them
Millionaire entrepreneur Lance Herndon is found bludgeoned to death in his Atlanta home. The search for his killer reveals no shortage of suspects or secrets.
84 min
The Man of Many Faces
Andrea Canning reports on the dramatic updates in the case of international fugitive Nicholas Rossi who faked his death as law enforcement closed in on him for alleged crimes of rape and fraud; will the man with multiple identities finally face justice?
84 min
A Little Patch of Perfect
After Gary "Big Daddy" Farris mysteriously disappears, his family discovers his remains on their sprawling 10-acre estate. An investigation reveals a family deeply divided by jealousy and greed, but did one of them kill Big Daddy?
84 min
Deadly Mirage
When Rob Limon is murdered at work, the investigation uncovers deep secrets about sex, friendship, religion and family; the broadcast explores the case featured in its chart-topping podcast "Deadly Mirage."
84 min
The Devil Wore White
An elderly socialite is reported missing from her stately New York City brownstone. When Sante Kimes and her son Kenny are arrested, an investigation reveals decades of crime, deception, and murder that captivated the nation.
83 min
Under the Bay Bridge
Bob Lee was a well-known tech visionary whose sudden and brutal death in 2023 left the tech world in shock. Family, friends, attorneys, police, and colleagues from the tech industry speak out exclusively to Dateline’s Josh Mankiewicz about the case.
84 min
Return to the Lake
30 years later... On October 25, 1994, Susan Smith reported that her two young sons had been taken by a carjacker. Everyone was looking for the two young brothers. For nine days, hearts went out to their poor parents. What came next was unimaginable.
84 min
A Walk Through the Woods
The high-profile case of two murdered Indiana teens takes a stunning turn after video of the killer, taken by one of his victims shortly before their deaths, is revealed.
83 min
The Haunted House Confession
On Friday the 13th, 25-year-old Chantay Blankinship doesn't come home from her usual walk around the neighborhood. Two days later, searchers make a gruesome discovery at an abandoned farmhouse that locals call the Haunted House. When all leads dry up, investigators turn to a unique forensic DNA tool, which sparks a shocking confession during a church service.
84 min
Lori Vallow Daybell: The Jailhouse Interview
Lori and Chad Daybell were both convicted in separate trials for the gruesome killings of two of Lori’s children in 2019. Now, Lori breaks her silence in a shocking new interview from prison.
84 min
Deadly Entanglement
In 2013, Desiree Sunford is found murdered in her Yakima, Washington, home. The case, which begins with what seems to be a simple burglary, spirals into a complex investigation exposing a tangled web of betrayal, deception, and fatal obsession.
84 min
Poison Twist
Kaitlyn Conley was convicted of manslaughter in 2017 after the death of Mary Yoder by poison. Conley maintains she is innocent and continues her fight to overturn the conviction.
83 min
Deadly Obsession
Mike Sisco and his fiancé Karen Harkness are found shot to death in their Topeka duplex in 2002. A years-long search for the killer and three criminal trials over two decades reveals strained dynamics within one victim’s family.
83 min
The Last Mile
On July 18, 2018, Mollie Tibbetts, a 20-year-old University of Iowa student, disappears while jogging near her home in Brooklyn, Iowa. Investigators discover security camera video that reveals a critical clue.
41 min
The Widow of Woodland Hills
Celebrity hairdresser Fabio Sementilli is brutally murdered in his backyard. A security camera helps investigators identify unlikely suspects and an illicit affair.
84 min
The Pin at Apartment 210
22-year-old Jasmine "Jazzy" Pace, a young Tennessee woman, mysteriously vanishes and misses her family's Thanksgiving dinner. Determined to track her down, her family takes matters into their own hands, pursuing every digital clue she left behind. What begins as a missing persons report evolves into a disturbing and calculated murder investigation.
41 min
The Devil’s in the Details
A West Virginia pharmacist is left widowed after her husband, 38-year-old Michael Cochran, suddenly dies. Their close-knit neighborhood rallies around the family until troubling details emerge regarding the couple's new business venture.
84 min
Murder in Minot
College student Anita Knutson is found stabbed to death. The case took years and the unwavering commitment of loved ones and investigators to reach a resolution.
84 min
Secrets of the Sliding Door
Simeonette Mapes-Crupi, a beloved Staten Island teacher, is found dead in the home she shared with her husband.
41 min
The Terrible Night on King Road
In the early morning hours of November 13, 2022, four University of Idaho students were killed in an off-campus rental house on King Road in Moscow, Idaho. See never-before-reported evidence, including video, photographic, and digital materials that investigators say track accused killer Bryan Kohberger’s movements.
83 min
Sean Combs on Trial
Correspondent Josh Mankiewicz reports on the charges against Combs, which include a five-count federal indictment for racketeering and sex trafficking.
41 min
Center of the Storm
Andrea Canning reports on the verdict in the retrial of Karen Read in Dedham, Massachusetts.
84 min
Sean Combs: The Insiders Speak
New interviews and exclusive details following the Sean "Diddy" Combs trial.
83 min
Secrets of Exam Room 9
When Angela Craig, a healthy mother of six, dies suddenly after an apparent medical illness, her community is stunned. As investigators dig deeper, suspicion shifts to her husband James, a respected local dentist and member of the LDS church.
43 min
The Night of the Audition
After newlywed Shannon Madill Burgess does not show up for a family gathering after landing a big audition, her loved ones begin to worry, and authorities uncover unsettling details.
43 min
The Betrayal of Sandra Birchmore
A February nor'easter closes a Boston-area elementary school; when it reopens, 23-year-old teacher’s aide Sandra Birch more never returns and is found dead in her home days later. Investigators rule the death a suicide, but was it something far more sinister?
43 min