Dateline: Unforgettable

1. Secret Lives

Air Date: 2021-03-08

When Jen Ramsaran disappeared, police searched online for clues and wondered if she escaped the real world for a fantasy world; journalist Andrea Canning covered the case in one of her first assignments for "Dateline."

2. Mystery in Orange County

Air Date: 2021-03-09

After a young Army veteran disappeared, detectives uncovered a cryptic 911 call placed 11 days before she went missing, which exposed a twisted story — and the truth; reporter Josh Mankiewicz recalls the case.

3. The Client

Air Date: 2021-03-10

Andrea Canning recalls the twists and turns in the case of Beverly Carter, a top-selling realtor who went missing after showing a house -- when her friends received mysterious text messages, they knew something was wrong.

4. Lauren's Promise

Air Date: 2021-11-23

It is a case Josh Mankiewicz cannot forget because, while a student-athlete did everything right to keep herself safe, others did not; after she was found murdered, investigators learned she reached out for help multiple times before her death.

5. The Grudge

Air Date: 2021-11-30

Andrea Canning reflects on a story that reminded her how people can be vulernable and how quickly life can change; she speaks with Judge Esther Salas about the knock at her door that robbed her of the most important thing in her life

6. Conduct Unbecoming

Air Date: 2021-12-14

A man with both power and prestige managed to fool everyone, right up until his arrest.

7. And Then There Were Three

Air Date: 2021-12-21

The case involved detective work so unique, it managed to stay with Dennis Murphy for years; days before Christmas, Michelle Martinko was visiting the mall when she was found stabbed to death; investigators found her killer almost 40 years later.

8. Collision

Air Date: 2021-12-28

Andrea Canning reflects on a case fueled by a rage so hot, it is seared into her memory; the battle between a wife and a mistress for one man's heart led down a deadly path, to a showdown on the highway.

9. Voices for Vanessa

Air Date: 2022-01-04

A case that reveals an ugly secret about life in the military and one Andrea Canning will not forget; when soldier Vanessa Guillen vanishes from Fort Hood, her family brings attention to her disappearance and revelations inspire a movement.

10. She Never Left

Air Date: 2022-01-11

Aaron Fraser was 3-years-old when his mom disappeared. Authorities believed that he witnessed her murder, yet the truth stayed buried. Haunted by the memory for more than two decades, Aaron eventually made a discovery that unlocked the mystery.

11. Into the Night

Air Date: 2022-01-18

Keith Morrison won't soon forget a frantic three days in 2016, when a woman's disappearance in Oregon set off an intense manhunt. The suspect's 60-hour crime spree included carjacking, abduction and murder.

12. A Texas Twist

Air Date: 2022-01-25

Against all odds, a young woman survives a brutal attack on her and a friend in a park, and while DNA points one way, a bombshell message points another.

13. At the Bottom of the Lake

Air Date: 2022-02-01

Keith Morrison looks back on this haunting mystery he reported on for more than 10 years. A pilot flees following a plane crash, becomes a fugitive and lives a double life for decades.

14. The Goldfinger Mystery

Air Date: 2022-02-08

A couple who made a fortune in gold was headed for divorce when the wife was murdered. How she was killed made this case unforgettable for Josh Mankiewicz. A video that seemed to provide an alibi ended up pointing police to the killer.

15. Shannon's Story

Air Date: 2022-02-22

It's a chilling story unlike anything Dennis Murphy has seen before, or since. A beautiful college student goes missing from her off-campus job. A week later, investigators receive a mysterious phone call that changes everything.

16. The Perfect Guy

Air Date: 2022-03-01

Andrea Canning reflects on this cautionary tale that still inspires her today. A man steals millions of dollars conning women and businesses over 25 years. One woman brings together a group of his victims to hold him accountable and face justice.

17. Frantic

Air Date: 2022-03-15

Josh Mankiewicz wanted to return to this case because the very thing Christina Morris feared most became her living nightmare. She went out with friends and vanished. Police questioned everyone, hoping the truth would lead them to her body.

18. Finding Venus

Air Date: 2022-03-22

A case with a plot so diabolical, Dennis Murphy had to revisit. Venus Stewart stepped outside her door and vanished. Investigators suspected her ex, but he had an alibi. Then a video gamer’s tale had detectives seeing double and exposed the truth.

19. The Black Box

Air Date: 2022-03-29

Andrea Canning reflects on a story that hits close to home for her because of where it takes place. A coroner arrives at the scene of a car accident to find his friend deceased and begins to think her death looks suspicious

20. Deliberate Evil

Air Date: 2022-04-05

Josh Mankiewicz returns to a case that took six years to report. A woman is found murdered after her friend hears her screaming on the phone. The case sits cold until the mysterious death of her boyfriend’s twin brother leads police to a suspect.

21. At The Edge of Town

Air Date: 2022-04-12

When a college student is found dead after a party, his mother is determined to find out what happened. What follows is one of Dennis Murphy’s most memorable stories, as this tenacious mom fights to get her son’s case in front of a jury.

22. The Interrogation

Air Date: 2022-04-19

A mother and son die in a house fire. A man confesses to their murders, but later says he was coerced. Keith Morrison returns to the case for an extraordinary look at the interrogation and the circumstances that could lead to a false confession.

23. Unchecked Evil

Air Date: 2022-04-26

A case Andrea Canning will never forget, because it revealed an unbelievable blind spot in law enforcement. Reagan Tokes worked a late shift at a local restaurant, then went missing. What happened to Reagan left her family and a city outraged.

24. Mystery at Heath Bar Farm

Air Date: 2022-05-03

Josh Mankiewicz returns to a case with a twist no one saw coming, including him. A popular teacher was killed in her home. There was an arrest, a trial, and a verdict. Then came the bombshell that gave a convicted murderer his chance at freedom.

25. The Collector

Air Date: 2022-05-10

A beloved couple was found murdered among a lifetime of valuable collectables in their home, an extraordinary place Dennis Murphy wanted to look back on. Investigators wanted to know if there was a connection between the memorabilia and the murder.

1. Under The Desert Sky

Air Date: 2022-06-07

A case Keith Morrison can't forget in which a teen's murder shakes a Nevada community and two unlikely people confess.

2. The Officer's Wife

Air Date: 2022-06-14

When a police officer's wife is shot to death in her bed, her parents' certainty that investigators have it wrong and their determination to untangle the mystery, makes the case unforgettable for Josh Mankiewicz.

3. The Eastlake Conspiracy

Air Date: 2022-06-21

Andrea Canning recalls a case in which investigators set up an elaborate sting operation to stop a murder-for-hire plot.

4. A Novel Defense

Air Date: 2022-06-28

A man charged with murder claims it was impossible for him to have committed the crime. For Dennis Murphy, the surprising courtroom strategy provides a memorable twist.

5. Smoke And Mirrors

Air Date: 2022-07-05

Keith Morrison reflects on the case of a Chicago woman from a big family who went missing. Investigators began to suspect a man in her life was full of secrets.

6. Somebody's Daughter

Air Date: 2022-07-12

A detective makes it her mission to find dozens of women who vanished on the streets of Albuquerque, New Mexico. For Josh Mankiewicz, her resolve makes this story unforgettable.

7. The Last Dance

Air Date: 2022-07-19

After shedding hundreds of pounds, a popular kindergarten teacher goes missing. Investigators find a link between her weight loss and her disappearance. The case ranks as having one of the craziest motives Andrea Canning has heard.

8. Return to the Lonely Road

Air Date: 2022-07-26

This case has stayed with Dennis Murphy since he first reported on it: A determined young woman searches for answers in her mother’s mysterious death. Her decades-long quest leads to a dramatic courtroom decision.

9. The Man Who Talked to Dogs

Air Date: 2022-08-02

Investigators track down a suspect in the disappearance of a celebrity dog trainer. Keith Morrison reflects on the fractured love story at the center of this mystery.

10. Out of the Darkness

Air Date: 2022-08-09

A wife calls 911 to report her husband has been shot on a country road in Texas. What she told investigators next makes this case memorable for Josh Mankiewicz.

11. Justice for Nikki

Air Date: 2022-08-16

Andrea Canning looks back on one of her most memorable cases where a fitness tracker helped detectives solve the mystery of a young woman's death in Wisconsin. Andrea confronts the killer in a tense interview.

12. House of Secrets

Air Date: 2022-08-23

When a star athlete at an Ivy League university goes on trial for murder, sparks fly in the courtroom. The trial ends with a stunning decision that Dennis Murphy will never forget, but the surprises in the case are just beginning.

13. The Black Widow of Lomita

Air Date: 2022-10-04

A California woman's two former husbands are mysteriously murdered nearly 20 years apart. Keith Morrison reflects on the case that sent him halfway across the world on a hunt for answers.

14. The Pink Gun Mystery

Air Date: 2022-10-11

When a complicated Texas love triangle ends in murder, a pink gun leads to an arrest. New evidence makes investigators rethink the case. Josh Mankiewicz has reported on two-timing before, but this case had a twist he has never seen.

15. Even the Devil Went to Church

Air Date: 2022-10-18

When a small-town Alabama resident is murdered, rumors involving a local pastor begin to swirl. Andrea Canning reflects on this story that feels to her like a steamy soap opera playing out in real life.

16. The Day Jennifer Disappeared

Air Date: 2022-10-25

Dennis Murphy reported on the twists and turns of the Jennifer Dulos case as they happened. He offers candid insight into his one-on-one interview with the prime suspect: Jennifer’s ex-husband, Fotis Dulos.

17. In the Dead of Night

Air Date: 2022-11-01

For Keith Morrison, this case stands out as an unusual mystery. The crime seemed arbitrary with no apparent motive. There was a confession which might have ended the investigation, but that was only the beginning.

18. A Promise to Helene

Air Date: 2022-11-08

A college student is found murdered and the case sits cold for nearly 40 years. Josh Mankiewicz reflects on the vow that keeps the case alive and the innovative method used to catch the killer.

19. Death of a Golden Girl

Air Date: 2022-11-15

An aspiring Playboy model is murdered in Miami, FL. A seven second clip of her last moments alive are caught on security video and could hold key clues. The haunting images make this case one of Dennis Murphy's most memorable.

20. Secrets From the Grave

Air Date: 2022-11-22

A man claims his wife died by suicide, but a suspicious house fire 24 years later raises doubts; Josh Mankiewicz remembers the suspect who could not stop talking.

21. Fallen

Air Date: 2022-11-29

When a pastor loses a second wife in an accident, authorities become suspicious. Dennis Murphy returns to this unforgettable story of evil and betrayal, wondering how far this a man of God might have fallen. Dennis still can’t believe the answer.

22. The Box

Air Date: 2022-12-06

Years after a Montana man is found dead, his son searches for answers. Keith Morrison cannot forget that son who opened a box, and faced a terrifying family secret.

23. The Creek

Air Date: 2022-12-13

After a 15-year-old girl disappears, investigators discover a creek where the local teenagers hang out. Dennis Murphy looks back on the case that kept him guessing until its astonishing conclusion.

24. Mystery on Blood Mountain

Air Date: 2022-12-20

Gary Hilton is a name Dennis Murphy will always remember. A hiker goes missing and authorities suspect Hilton is reenacting a slasher movie. Dennis reflects on the real-life murder spree that terrorized the American South.

25. The Betrayal of Sarah Stern

Air Date: 2023-07-26

Keith Morrison revisits a story that has haunted him for years; when detectives find a missing woman's car abandoned on a bridge, their investigation uncovers a tangled plot involving money, friendship, and a deadly betrayal.

26. The Dead of Night

Air Date: 2023-08-02

A mother of two vanishes in Monrovia, CA. As detectives investigate, the woman's loved ones reveal that she feared she was being stalked. For Josh Mankiewicz, cases like these are all too familiar, and that's a tragedy he just can't shake.

27. Deadly Valentine

Air Date: 2023-08-09

Nathan and Denise Leuthold built their family on faith, but suddenly one of them was dead and the other was under suspicion. It's a story that stays with Andrea Canning, both because of what happened and when it happened: Valentine's Day.

28. Down the Back Staircase

Air Date: 2023-08-16

When a novelist's wife is found dead at the bottom of the stairs, investigators wonder if it is an accident or murder; Dennis Murphy interviews main suspect Michael Peterson and returns to the case with insight only he can share.

29. The Ranch

Air Date: 2023-08-23

Eduardo Valseca is taken hostage in an orchestrated abduction; Keith Morrison reflects on the family he spent years following; what happened to them might have destroyed many, but not the Valsecas.

30. What Happened to Amy?

Air Date: 2023-08-30

For more than 30 years, Ohio investigators have searched for answers in the murder of 10-year-old Amy Mihaljevic; the case details still haunt Josh Mankiewicz and investigators, who ask for help in solving the crime.

31. The Secret of Spirit Lake

Air Date: 2023-09-06

An advocate for missing and murdered Indigenous women searches for answers in the disappearance of her niece and exposes cracks in law enforcement. Andrea Canning looks back on this important story, one that became her passion project.

32. The Plan

Air Date: 2023-09-13

A double homicide in upstate New York leads detectives on a cross-country investigation; Dennis Murphy reflects on a story full of twists and turns, including the surprising suspect at the center.

33. The Haunting

Air Date: 2023-09-20

The children of an Oklahoma pastor survive the robbery that took their parents' lives; it's a story Keith Morrison still can't forget, and one where the very best and worst of humanity are both on full display.

34. Internal Affairs

Air Date: 2023-09-27

When a popular graduate student is shot dead in Durham, NC, detectives uncover a deadly love triangle; it takes a lot to surprise correspondent Josh Mankiewicz, but the claims are shocking.

35. Return to Manitowoc County

Air Date: 2023-10-04

It's a mystery that defies easy answers, and "Dateline" has been following it for more than a decade; Steven Avery and his teenage nephew were convicted of killing Teresa Halbach; now, Andrea Canning shares her insight into the controversial case.

36. Twisted

Air Date: 2023-10-11

When an Iowa woman is attacked while home alone with her three children, the confrontation turns deadly; Dennis Murphy examines one of the most sophisticated criminal plots of his "Dateline" career.

37. Good & Evil

Air Date: 2023-10-18

After a young woman's body is discovered at a trash facility, a detective promises justice and comes face-to-face with a serial killer; Keith Morrison revisits the case.

38. The House

Air Date: 2023-10-25

A woman finds her father, a former FBI agent, murdered at his house; after digging into his past, police suspect the killer might be close to home; for Josh Mankiewicz, the toxic marriage at the heart of this case makes it unforgettable.

39. Breakout

Air Date: 2023-11-01

When a Kansas prisoner escapes in a van driven by a volunteer, investigators scramble to track down the pair; Andrea Canning likens this story to a bunch of Hollywood blockbusters rolled into one, but it's as real as it gets.

40. Family Affair

Air Date: 2023-11-08

The heir to a legendary hotel is brutally murdered, and detectives learn he had no shortage of enemies; Dennis Murphy takes a fresh look at this extraordinary investigation, a hunt for a killer he calls the most ruthless he's ever seen.

41. The Women and Dirty John

Air Date: 2023-11-15

Debra Newell thinks she found Mr. Right, but her daughters sense something wrong about John Meehan; their search for answers exposes a dangerous con man and deceit that runs as deep as any Keith Morrison has covered.

42. Open Water

Air Date: 2023-11-22

A Mediterranean cruise meant to rekindle the love between a woman and her ex-husband leads to her disappearance; the investigation reveals secret recordings and an undercover hitman; Josh Mankiewicz reflects on the cold-blooded crime.

43. The Silhouette

Air Date: 2023-11-29

Debbie Kelly and Lars Itzo make their marriage of opposites work; when Debbie is killed, there is no question about who shot her, yet the explanation of why is one of the most confounding Andrea Canning has heard.

44. The Sting

Air Date: 2023-12-06

Newlywed Dalia Dippolito comes home from the gym to find out her husband has been killed; in a case Dennis Murphy will never forget, almost nothing is as it seems; he explores whether Dalia was a pawn in a hoax gone wrong or simply diabolical.

45. Deadly Desire

Air Date: 2023-12-13

They were two beautiful families living out their dreams, but gunshots in a parking lot revealed an ugly truth. Detectives uncovered three lives tangled in a love triangle. Keith Morrison finds the tale of deceit and betrayal unforgettable.

46. Plot Twist

Air Date: 2023-12-20

For a group of stage actors, life seemed to be imitating art in the worst way when a college student was killed.

47. The Life and Death of Princess Diana

Air Date: 2023-12-27

Andrea Canning looks back on the royal who has fascinated her since childhood, Princess Diana. She explores Diana's real story, including a look at her troubled marriage, turbulent life and the investigation into her death.

48. The Last Dive

Air Date: 2024-01-03

A couple takes a scuba-diving trip to the British Virgin Islands. On their last dive, one of them surfaces but the other does not. Police quickly suspect the drowning was no accident. Now Dennis Murphy gives this unforgettable story a second look.

1. On a Dark, Deserted Highway

Air Date: 2024-01-18

Keith Morrison recalls how a deadly high-speed chase in Montana led to a mystery, where a missionary turned into a monster and committed one of the state's most notorious crimes.

2. Siren Song

Air Date: 2024-01-25

A mystery in paradise unfolds when Sarm Heslop vanishes from her boyfriend's yacht; in a case that made international headlines, Andrea Canning recounts her memorable journey searching for a particular person of interest.

3. The Woman Who Couldn't Scream

Air Date: 2024-02-01

A 911 call reporting an apartment break-in holds the key to solving the mysterious murder of a young graduate student named Katie Sepich; her case contained many twists, and her family's grit still astonishes Josh Mankiewicz.

4. The Devil Was Watching

Air Date: 2024-02-08

When Tina Sandoval disappears, her parents and loved ones spend years searching for her; Dennis Murphy takes a fresh look at the secret Tina kept and at the demon who forced her loved ones to make an agonizing decision.

5. Left for Dead

Air Date: 2024-02-15

The survivor of a horrible attack is convinced the police on the case have the wrong suspect. Keith Morrison looks back on his heart-wrenching interview with the victim and her courageous quest to uncover the truth.

6. Point Blank

Air Date: 2024-02-22

After Todd Chance is murdered, police follow a trail of video evidence to track down their suspect; Andrea Canning recalls a particularly revealing interview, including an eye-popping detail.

7. Complicated

Air Date: 2024-02-29

When Josh Mankiewicz gets asked about his most memorable stories, the name Dayna Herroz comes to mind; after her daughter and 10-month-old grandson are murdered, her quest for justice ends with a twist in a San Diego courtroom.

8. The Window

Air Date: 2024-03-07

A Florida father is determined to find out what happened to his daughter after her fatal fall from a penthouse apartment; Dennis Murphy revisits the dramatic events as this dad confronts overwhelming obstacles to learn the truth.

9. The Evil That Watches

Air Date: 2024-03-14

When three people are found dead on the same day in a Kentucky town, investigators know that it isn't a coincidence; years pass before an arrest; Keith Morrison reflects on the triple murder that shook a tight-knit community to its core.

10. The Murder of Lorenzen Wright

Air Date: 2024-03-21

The fatal shooting of NBA star and hometown hero Lorenzen Wright sends shockwaves through the city of Memphis, TN; Andrea Canning takes a new look at the diabolical plot behind Wright's murder and his family's tireless fight for justice.

11. A Walk in the Rain

Air Date: 2024-03-28

The murder of 19-year-old Alaska Native Sonya Ivanoff jolts the small coastal city of Nome, Alaska; the story sends Josh Mankiewicz to the most remote place he's ever been for "Dateline."

1. What Happened in Vegas

Air Date: 2024-06-06

A chance encounter on the Pacific Coast Highway with a woman he first spoke to in a jail cell leads Keith Morrison to re-examine the mysterious death of Las Vegas casino magnate Ted Binion.

2. Lonestar Obsession

Air Date: 2024-06-13

When Dr. Joe Sonnier is murdered in Lubbock, TX, the investigation reveals simmering jealousies and a love triangle; Andrea Canning recalls a doctor who dedicated his life to helping others.

3. Twisted Faith

Air Date: 2024-06-20

A pastor's secrets come to light, triggering a murder investigation; Josh Mankiewicz looks back at a case that shattered a congregation and exposed the cost of their trust.

4. Sex, Lies & Murder

Air Date: 2024-06-27

When a woman is found dead in her SUV, the investigation into her murder reveals a tangled web of sex and lies. Dennis Murphy looks back on his unusual interview with the lead suspect.

5. In A Lonely Place

Air Date: 2024-07-04

Chris Smith's family receives an email stating that he is leaving California to surf the world; months later, they wonder if he really left. Keith Morrison offers new insights into the case.

6. The Music Box

Air Date: 2024-07-11

After 24-year-old Lisa Zeigert is killed in Agawam, MA, in 1992, her family keeps the case in the public eye for decades and it was featured on the show Unsolved Mysteries; Andrea Canning reflects on the harrowing mystery and discusses the inspiration she's drawn from Lisa's loved ones.

7. Detective Story

Air Date: 2024-07-18

In Los Angeles, newlywed Sherri Rasmussen is killed in an apparent botched burglary in February 1986; nearly 20 years later, a detective discovers a clue that turns the case on its head; Josh Mankiewicz revisits a story with a twist that surprised him.

8. The Secret Life of the Homecoming Queen

Air Date: 2024-07-25

To many, it seemed like a romance between a former football player and homecoming queen; but when it ends in death, the police investigate; Dennis Murphy reflects on a secret relationship that led a churchgoing couple down a dangerous path.

9. Kill Switch

Air Date: 2024-08-01

Keith Morrison revisits a story where he says unusual would be putting it mildly; at first it appeared to be a drowning accident during a romantic sunset cruise; but soon Idaho investigators suspected something more sinister.

10. Window of Opportunity

Air Date: 2024-08-08

A bombshell more than a decade after the crime reignites the investigation into the death of Sarah Pagel's mother. Andrea Canning looks back at her emotional interview with Sarah, whose mom touched so many lives.

1. Killer Role

Air Date: 2025-01-16

After filming wraps up 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.

2. Safari Story

Air Date: 2025-01-23

A hunting safari in Zambia ends in tragedy when a shot rings out from the cabin of a dentist and his wife. Andrea Canning revisits one of the most unique cases she's covered, one that sent her miles from home in search of answers.

3. The Favorite Son

Air Date: 2025-01-30

A couple is murdered shortly after their wedding and police suspect a family feud is the cause; Josh Mankiewicz looks back at what started the dispute that left him floored.

4. The Trial of Lori Vallow Daybell

Air Date: 2025-02-06