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Dateline
Season 29 • Episode 9 • A Promise to Helene
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Dateline Season 29, Episode 9: A Promise to Helene
When college student Helene Pruszynski is found murdered, her case remains cold for nearly 40 years until a new detective uses an innovative method to catch the killer. Josh Mankiewicz reports. Watch Dateline Season 29, Episode 9 A Promise to Helene in HD free online. Enjoy high-quality streaming of Dateline Season 29, Episode 9 and share your thoughts in the comments below!
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Episodes
45 episodes
Trouble at the 7-11 Ranch
Josh Mankiewicz reports on the mysterious disappearance of a Colorado rancher.
43 min
Left For Dead
The survivor of a horrible attack is convinced police have the wrong suspect.
83 min
Tallahassee Trap
Dennis Murphy has the latest on the case of a Florida law professor murdered in his garage, including new details, newly-released evidence and bombshell testimony from a long-awaited trial.
43 min
A Killer Role
After filming wraps on an indie horror movie, the cast members learn that their lead actress is not who she says she is and has been charged with killing her uncle.
43 min
Lone Star Obsession
When a doctor is found murdered, investigators are stumped as to who would want him dead. Police discover simmering jealousies and a love triangle. Andrea Canning has the latest developments.
43 min
The Dead of Night
A mother of two goes missing in Monrovia, California. As detectives investigate, the woman's friends and family reveal that she feared she was being stalked. Josh Mankiewicz reports.
43 min
What Happened to Don Lewis
43 min
The Client: A New Look
An Arkansas realtor goes missing after showing a house. When loved ones later receive mysterious text messages from her, they know something isn’t right. Andrea Canning reports.
43 min
A Promise to Helene
When college student Helene Pruszynski is found murdered, her case remains cold for nearly 40 years until a new detective uses an innovative method to catch the killer. Josh Mankiewicz reports.
43 min
Even the Devil Went to Church
In Morris, Alabama, faith is a way of life. But when a man is murdered, rumors involving a pastor begin to swirl and the truth ends up turning the community upside down. Andrea Canning reports.
40 min
Return to Shalimar Way
When a woman dies after what appears to be an accidental fall in the shower, two friends join forces to seek justice on her behalf. Andrea Canning reports.
43 min
Hope Whispers
After Ellie Green doesn't hear from her mother for a few days following an argument, she begins to worry. Then she learns her mother is dead. But is that the truth? Keith Morrison reports.
43 min
The Eastlake Conspiracy
When Ohio resident Pat Sabo is offered $50,000 to kill someone hundreds of miles away, he calls the police to report the incident; acting quickly, investigators set up an elaborate sting operation to bring down those behind the murder-for-hire plot;
43 min
10 Minutes to Sunset
When a pediatric dentist is found dead, police uncovers a complex plot and their suspect leads investigators on an international manhunt; the lead detective speaks out for the first time;
43 min
Voices for Vanessa
When a soldier, Vannessa, vanishes from Fort Hood, her family do everything they can to bring attention to her disappearance; Secretary of the Army Ryan McCarthy speaks about the investigation and allegations of sexual assault in the military;
43 min
Point Blank
After Todd Chance is murdered, police follow a trial video evidence as they work to track down the killer;
43 min
Race for a Vaccine
Top executives at Pfizer, Moderna, and Johnson and Johnson talk about plans for COVID-19 vaccine distribution and efforts to overcome public mistrust; interviews with key advisors from President Donald Trump and President-Elect Joe Biden's COVID-19 task forces;
43 min
Far from Spider Lake
A 40-year-old Minnesota woman is shot to death in her bed, while her husband and teenage daughter are home, leaving investigators to wonder who would want her dead;
43 min
Into the Night - Part 2
The latest in the case of a missing young Oregon woman, whose disappearance led to an intense manhunt, after a suspect embarked on a two-state crime spree;
43 min
The Life and Death of Princess Diana
More than 2 decades since the tragic death of Princess Diana, Dateline reveals new insights into the real story of the very private royal, including a look at Diana's troubled marriage, her turbulent life in the royal family, and the investigation into her death;
82 min
Journey for Justice
The families of George Floyd, Jacob Blake Jr, and Eric Garner open up together in a raw and emotional conversation about their pain, anger, and frustration over police violence;
43 min
Open Water
A romantic Mediterranean cruise, which was intended to rekindle the love between a woman and her ex-husband, had led to the vanishing of her; the investigation would reveal secret recordings, a surprising star witness, and an undercover hit man;
80 min
The Grudge
The deadly shooting at U.S. District Court Judge Esther Salas’ home that left her husband Mark injured and their son Daniel dead.
40 min
Night of the Summer Solstice
Keith Morrison has the latest developments in the case of a 21-year-old UCLA student, whose body was found in an infamous Los Angeles area train tunnel in 1990.
83 min
Lauren's Promise
When University of Utah athlete Lauren McCluskey is found murdered on campus, investigators learn that she had reached out to the campus police for help multiple times before her death. Josh Mankiewicz reports on the latest significant changes and consequences the school is facing.
40 min
The Woman at the Bar
A nationwide manhunt is launched after a woman dubbed the “killer grandma” goes on the run through the Gulf Coast. Dennis Murphy reports.
43 min
Shannon's Story
A college student goes missing in broad daylight from her off-campus job. As police begin to investigate, they receive a mysterious phone call that changes everything.
43 min
Death of a Hometown Hero
Popular basketball player Lorenzen Wright is found murdered in 2010. His mother insists she knows who murdered her son and is relentless in her pursuit of justice. Andrea Canning reports.
43 min
The Black Box (Repeat)
A coroner arrives at the scene of a car wreck to find a woman dead. He becomes suspicious when he notices unusual markings on her face. Was her death really an accident? Andrea Canning reports.
43 min
Broken Circle
When the owner of a school promoted as a place to help troubled girls is accused of abusing students, his daughter must decide whose side she’s on. Keith Morrison reports.
40 min
The Monster at Large
When Susan Woods doesn’t show up for work, she is soon discovered dead in her bathtub. As police search for answers, they find a trail of victims. Natalie Morales reports.
43 min
Collateral Damage
Former NXIVM member Dr. Danielle Roberts defends branding members of the alleged sex cult; former members India Oxenberg and her mother, Catherine Oxenberg, open up about how they are doing, after the group's founder is convicted of felonies.
43 min
Return to the Landing
In an attempt to move on from a tumultuous love triangle, South Carolina native Heather Elvis goes out on a first date on December 17, 2013. After returning home, she calls her friend Brianna. Heather is never seen or heard from again.
43 min
The Life She Wanted
Witnesses see a woman handcuffed in a parking lot and taken into an unmarked car by a blond woman. But detectives can't find any record of an arrest. Where could she be? Josh Mankiewicz reports.
43 min
The Woman with No Name
Amateur internet investigators, new DNA technology and a dogged investigator help police find a killer – and identify a victim for years known only as "Lavender Doe."
43 min
The Waiting Car
Lead detectives in the murder investigation of University of Utah student MacKenzie Lueck speak exclusively to Keith Morrison about the case that made national headlines.
40 min
Mommy Doomsday
Exclusive new interviews and details on the deaths surrounding Chad and Lori Vallow Daybell, a case Keith Morrison has been on since it drew national attention after Lori’s children disappeared.
43 min
Sex, Lies, & Murder
When a woman is murdered, a web of sex and lies is uncovered, revealing a prominent family’s dark secrets. Detectives and an FBI informant tell Dennis Murphy about the case for the first time. Update of Secrets in the Suburbs (S20E45).
43 min
The Phone Call
Kathleen Schroll makes a phone call that names her killer right before her death, it leads to the arrest of a father for murder. But two trials and 12 years later, authorities begin to wonder if he was the victim, not the villain.
43 min
The Necklace
When a private investigator and former police officer vanishes, detectives think there may be more to the story when strange text messages start to appear... Keith Morrison reports.
Killer Role
After filming wraps on an indie horror film, the cast and crew learn their killer star isn’t who she says she is. It’s a plot twist that reveals a real-life killer. Keith Morrison reports.
Window of Opportunity
A Michigan community is shocked when a local mother is found stabbed to death. After the case goes cold for more than a decade, a bombshell reignites the investigation. Andrea Canning reports.
Secrets by the Bay
A mother of two vanishes, and nearly two years later her body is found in the San Diego Bay, but medical examiners say she had only been dead for about a month or two. Keith Morrison reports.
House of Horrors
After a mother and son are found dead, it takes nearly a decade to unravel the case. Andrea Canning reports the latest, including how a second investigation led to a new and unexpected arrest.
The Fight for America's Soul
America is on its knees thanks to the global pandemic, and a year marred by division and uncertainty. Dateline investigates why so many are now turning to religion and seeking solace in the spiritual world.
43 min