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The brutal murder of 15-year-old Martha Moxley in affluent Connecticut rocked a community. A golf club, a diary filled with secrets, and a web of unanswered questions. Erin Moriarty of 48 Hours investigates this chilling cold case, exploring the clues hidden within Martha's personal writings. Did her diary reveal the identity of her killer? Watch the full episode to uncover the truth.

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Cold Cases

1970 Ontario Serial Murders Investigation: The Gormley Cold Case | 72 Hours | Real Crime

1970 Ontario Serial Murders Investigation: The Gormley Cold Case | 72 Hours | Real Crime

01:27:23

Stranger Danger: Careful Who You Trust

Stranger Danger: Careful Who You Trust

50:49

The Hunt for Austin's Cabbie Killer | Murder She Solved | Real Crime

The Hunt for Austin's Cabbie Killer | Murder She Solved | Real Crime

43:30

The Sadistic Stranger Jack Unterweger Who Found Fame In Writing | The FBI Files | Real Crime

The Sadistic Stranger Jack Unterweger Who Found Fame In Writing | The FBI Files | Real Crime

49:55

Glasgow: The Murder Capital Of Europe | Gangs of Britain

Glasgow: The Murder Capital Of Europe | Gangs of Britain

43:25

Blood Chilling Story Of Scotland's Most Terrifying Serial Killer | World’s Most Evil Killers

Blood Chilling Story Of Scotland's Most Terrifying Serial Killer | World’s Most Evil Killers

41:36

Natalie Wood: Death in Dark Water | Full Episode

Natalie Wood: Death in Dark Water | Full Episode

43:00

The Gruesome Murder Of A Taxi Driver | Murder She Solved | Real Crime

The Gruesome Murder Of A Taxi Driver | Murder She Solved | Real Crime

43:26

Teen Sisters Murder Their Mother | Dark Waters Of Crime | Real Crime

Teen Sisters Murder Their Mother | Dark Waters Of Crime | Real Crime

45:42

Body Found In Garage: Unmasking The Dean Browne Case

Body Found In Garage: Unmasking The Dean Browne Case

45:00

Australia's Worst Solo Serial Killer | Born To Kill? | Real Crime

Australia's Worst Solo Serial Killer | Born To Kill? | Real Crime

45:54

Crosley Green Comes Home | Full Episode

Crosley Green Comes Home | Full Episode

42:02

Inside The FBI's Most Complex Investigations | FBI Files S3 Marathon (Pt.2) | Real Crime

Inside The FBI's Most Complex Investigations | FBI Files S3 Marathon (Pt.2) | Real Crime

07:25:48

The Downfall Of Myra Hindley: The Victims and Survivors of The Moors Murders (Part 2)

The Downfall Of Myra Hindley: The Victims and Survivors of The Moors Murders (Part 2)

44:31

The FBI Files S4 Marathon Part 2: Watch the Greatest Crime-Solving Moments of All Time | Real Crime

The FBI Files S4 Marathon Part 2: Watch the Greatest Crime-Solving Moments of All Time | Real Crime

03:21:47

The Sleepwalking Murderer | Exhibit A (Double Episode) | Real Crime

The Sleepwalking Murderer | Exhibit A (Double Episode) | Real Crime

44:58

America's Smartest Bank Robbery? | The FBI Files | Real Crime

America's Smartest Bank Robbery? | The FBI Files | Real Crime

49:32

10 Years Old Girl Dissapears for 3 YEARS I City Of Evil

10 Years Old Girl Dissapears for 3 YEARS I City Of Evil

44:54

The WW2 Veteran Who Killed Two Women He Dated |Murder Maps

The WW2 Veteran Who Killed Two Women He Dated |Murder Maps

43:06

BTK: Catching One Of The Most Infamous Serial Killers | World’s Most Evil Killers | Real Crime

BTK: Catching One Of The Most Infamous Serial Killers | World’s Most Evil Killers | Real Crime

42:48

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Murder

Hunting The Hollywood Killer

Hunting The Hollywood Killer

48:28

Psychotic Maniac That Inspired "Scream" | World’s Most Evil Killers

Psychotic Maniac That Inspired "Scream" | World’s Most Evil Killers

43:32

Lost Before Her 30th Birthday: What Happened To Linah Keza? | Murder At My Door | Real Crime

Lost Before Her 30th Birthday: What Happened To Linah Keza? | Murder At My Door | Real Crime

43:14

The Psychiatrist and the Selfie | Full Episode

The Psychiatrist and the Selfie | Full Episode

44:00

The Shape of a Killer | Full Episode

The Shape of a Killer | Full Episode

42:15

London’s 1953 Axe Murders | Murder Maps

London’s 1953 Axe Murders | Murder Maps

43:07

Cunning Female Killer Blames Fictional Road Rage Assailant | World’s Most Evil Killers | Real Crime

Cunning Female Killer Blames Fictional Road Rage Assailant | World’s Most Evil Killers | Real Crime

43:25

The Crazy Don | the FBI Files S1 EP7 | Real Crime

The Crazy Don | the FBI Files S1 EP7 | Real Crime

52:03

Superthief: The Story Behind America's Biggest Bank Heist (Full Documentary) | Real Crime

Superthief: The Story Behind America's Biggest Bank Heist (Full Documentary) | Real Crime

01:20:58

Exploring The Psychology of Infamous Killers | World’s Most Evil Killers S1 Marathon | Real Crime

Exploring The Psychology of Infamous Killers | World’s Most Evil Killers S1 Marathon | Real Crime

14:12:38

Inside the Lori Vallow Daybell Trial: Zombies and Evil Spirits | "48 Hours" Podcast

Inside the Lori Vallow Daybell Trial: Zombies and Evil Spirits | "48 Hours" Podcast

26:44

Adoptive Parents Kill “Problematic Child” | Confessions Of Crime | Real Crime

Adoptive Parents Kill “Problematic Child” | Confessions Of Crime | Real Crime

22:30

Why Did this Teacher React Strangely to Her Student's Murder?

Why Did this Teacher React Strangely to Her Student's Murder?

34:44

The Mysterious Corpse With No Hands | Forensics | Real Crime

The Mysterious Corpse With No Hands | Forensics | Real Crime

44:56

Real Estate Agent Turned Serial Killer: Todd Kohlhepp | World’s Most Evil Killers | Real Crime

Real Estate Agent Turned Serial Killer: Todd Kohlhepp | World’s Most Evil Killers | Real Crime

42:40

Ruthlessly Killed His Own Children | The Family Slayer

Ruthlessly Killed His Own Children | The Family Slayer

45:17

The Gruesome Murder Of A Taxi Driver | Murder She Solved | Real Crime

The Gruesome Murder Of A Taxi Driver | Murder She Solved | Real Crime

43:26

The Family That Was Murdered for £5 Million | Real Crime

The Family That Was Murdered for £5 Million | Real Crime

47:13

Alpha Bay Takedown: The Dark Web's Biggest Drug Marketplace Exposed | The Dark Web | Real Crime

Alpha Bay Takedown: The Dark Web's Biggest Drug Marketplace Exposed | The Dark Web | Real Crime

45:42

The Golden State Killer | Full Episode

The Golden State Killer | Full Episode

43:47

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Unsolved Mysteries

Murder Mysteries and Voices from the Dead | "48 Hours" Full Episodes

Murder Mysteries and Voices from the Dead | "48 Hours" Full Episodes

02:04:45

Serial Killer's Secret Box Reveals Missing Victims

Serial Killer's Secret Box Reveals Missing Victims

45:40

Tracking the Killer of Mary Catherine Edwards | Full Episode

Tracking the Killer of Mary Catherine Edwards | Full Episode

41:08

Where is Erin? | "48: NCIS" | "48 Hours" Podcast (Episode 1)

Where is Erin? | "48: NCIS" | "48 Hours" Podcast (Episode 1)

33:55

1970 Ontario Serial Murders Investigation: The Gormley Cold Case | 72 Hours | Real Crime

1970 Ontario Serial Murders Investigation: The Gormley Cold Case | 72 Hours | Real Crime

01:27:23

Secrets and Lies | "48 Hours" Full Episodes

Secrets and Lies | "48 Hours" Full Episodes

02:05:26

The Circleville Letters | Full Episode

The Circleville Letters | Full Episode

41:56

Criminal Blunders | "48 Hours" Full Episodes

Criminal Blunders | "48 Hours" Full Episodes

02:04:43

Weapon of Choice | "48 Hours: NCIS" | "48 Hours" Podcast (Episode 5)

Weapon of Choice | "48 Hours: NCIS" | "48 Hours" Podcast (Episode 5)

32:15

"Lizzie Borden Took an Axe" | Full Episode

"Lizzie Borden Took an Axe" | Full Episode

41:53

Stephen Smith: A Death in Murdaugh Country | Full Episode

Stephen Smith: A Death in Murdaugh Country | Full Episode

42:02

Crosley Green Comes Home | Full Episode

Crosley Green Comes Home | Full Episode

42:02

Kassanndra's Secret | Full Episode

Kassanndra's Secret | Full Episode

40:54

Murder in the Orange Grove: The Troubled Case Against Crosley Green | Full Podcast + Episode

Murder in the Orange Grove: The Troubled Case Against Crosley Green | Full Podcast + Episode

06:06:57

Sifting Through the Ashes: The Loathsome Job of Finding a Murderer | Bizarre Murders | Real Crime

Sifting Through the Ashes: The Loathsome Job of Finding a Murderer | Bizarre Murders | Real Crime

44:03

Cults & Crimes: Teenager Imprisoned by Satanists | Nightmare In Suburbia | Real Crime

Cults & Crimes: Teenager Imprisoned by Satanists | Nightmare In Suburbia | Real Crime

01:32:41

The Night of the Idaho Student Murders | Full Episode

The Night of the Idaho Student Murders | Full Episode

42:01

Flight 4184 Crash: Uncovering Clues and Answers | The New Detectives | Real Crime

Flight 4184 Crash: Uncovering Clues and Answers | The New Detectives | Real Crime

53:28

What Happened to Ruth Wilson? | True Crime Documentary | Real Crime

What Happened to Ruth Wilson? | True Crime Documentary | Real Crime

30:25

FBI's Coldest Case Ever Solved: The Swanson Motel Murders

FBI's Coldest Case Ever Solved: The Swanson Motel Murders

02:06:13

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Violence

Partying Teens Murder A Homeless Man | Dark Waters Of Crime | Real Crime

Partying Teens Murder A Homeless Man | Dark Waters Of Crime | Real Crime

45:19

The Killer Who Sparked The Biggest Manhunt

The Killer Who Sparked The Biggest Manhunt

29:03

The International Manhunt To Take Down A Human Trafficking Ring

The International Manhunt To Take Down A Human Trafficking Ring

46:22

From Fake Deaths To Solving Grisly Murders | The New Detectives | Real Crime

From Fake Deaths To Solving Grisly Murders | The New Detectives | Real Crime

01:41:59

Inside the Lori Vallow Daybell Trial: Broken Trust | "48 Hours" Podcast

Inside the Lori Vallow Daybell Trial: Broken Trust | "48 Hours" Podcast

32:45

The Sinister Case Of Hannah Clarke

The Sinister Case Of Hannah Clarke

36:21

Preacher’s Daughter With A Poisonous Plan | Poisonous Liaisons | Real Crime

Preacher’s Daughter With A Poisonous Plan | Poisonous Liaisons | Real Crime

43:15

Does Crime Actually Pay? | British Gangsters | Real Crime

Does Crime Actually Pay? | British Gangsters | Real Crime

44:19

How A Parrot Helped Solve A Murder | Bizarre Murders | Real Crime

How A Parrot Helped Solve A Murder | Bizarre Murders | Real Crime

53:18

Leaving His Victim For Her Children To Find | World’s Most Evil Killers | Real Crime

Leaving His Victim For Her Children To Find | World’s Most Evil Killers | Real Crime

41:05

Vatican Secrets Unveiled: The Kidnapping of a Young Girl | Real Crime

Vatican Secrets Unveiled: The Kidnapping of a Young Girl | Real Crime

51:10

The Hunt for the Long Island Serial Killer | Full Episode

The Hunt for the Long Island Serial Killer | Full Episode

41:31

Attacking Mothers In Front Of Their Children | World’s Most Evil Killers | Real Crime

Attacking Mothers In Front Of Their Children | World’s Most Evil Killers | Real Crime

42:55

14+ Hours Of The Most Terrifying Murderers | World’s Most Evil Killers S3 Marathon | Real Crime

14+ Hours Of The Most Terrifying Murderers | World’s Most Evil Killers S3 Marathon | Real Crime

14:21:46

Inside the Mind of The Queen of Cons: Lily Schmidt | Exhibit A | Real Crime

Inside the Mind of The Queen of Cons: Lily Schmidt | Exhibit A | Real Crime

46:23

The Golden State Killer | Full Episode

The Golden State Killer | Full Episode

43:47

Two Wigs, a Gun and a Murder Part 1 | Full Episode

Two Wigs, a Gun and a Murder Part 1 | Full Episode

42:02

Woodman Family Murders: Motive, Evidence, and Arrests | New Detectives

Woodman Family Murders: Motive, Evidence, and Arrests | New Detectives

53:48

Man Shoots His Wife and Blames It on the Hitman He Hired

Man Shoots His Wife and Blames It on the Hitman He Hired

35:41

The Psychiatrist and the Selfie | Full Episode

The Psychiatrist and the Selfie | Full Episode

44:00

View All