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The brutal murders of Dartmouth professors Susanne and Half Zantop rocked the Ivy League. With no signs of forced entry, the FBI's Behavioral Science Unit delves into a chilling mystery. Did you know about this unsolved case? Discover the unsettling details and the unanswered questions surrounding their senseless deaths in this episode of "The FBI Files." Subscribe for more true crime investigations!

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Cold Cases

Inside The Dangerous Soccer Mafia

Inside The Dangerous Soccer Mafia

44:00

Robin Hood-Esque Bank Robber Gains Fans For Pre-Christmas Robbery | The FBI FIles | Real Crime

Robin Hood-Esque Bank Robber Gains Fans For Pre-Christmas Robbery | The FBI FIles | Real Crime

49:05

Introducing Raynella Leath | "Married to Death" | "48 Hours" Podcast

Introducing Raynella Leath | "Married to Death" | "48 Hours" Podcast

19:52

Catching A Victorian Serial Killer | Murder Maps

Catching A Victorian Serial Killer | Murder Maps

44:03

Savage String of Seaside Murders: Closing The Case 8 Years Later

Savage String of Seaside Murders: Closing The Case 8 Years Later

47:36

The Power Of DNA: How One Strand Can Find A Killer Or Set Someone Free | New Detectives | Real Crime

The Power Of DNA: How One Strand Can Find A Killer Or Set Someone Free | New Detectives | Real Crime

51:20

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

From Flashing To The Unimaginable: The Meadowvale Predator's Rampage | 72 Hours | Real Crime

From Flashing To The Unimaginable: The Meadowvale Predator's Rampage | 72 Hours | Real Crime

44:01

Night Stalker: The Vicious Killer That Terrorised LA | World’s Most Evil Killers | Real Crime

Night Stalker: The Vicious Killer That Terrorised LA | World’s Most Evil Killers | Real Crime

44:03

The Monster's Mother: My Serial Killer Son | Dark Waters Of Crime

The Monster's Mother: My Serial Killer Son | Dark Waters Of Crime

45:42

Yosemite Park Killer: When A Victim Turns Into A Murderer | World’s Most Evil Killers | Real Crime

Yosemite Park Killer: When A Victim Turns Into A Murderer | World’s Most Evil Killers | Real Crime

43:16

The Grim Case Of Raynella Leath

The Grim Case Of Raynella Leath

45:58

The Writing on the Wall | Full Episode

The Writing on the Wall | Full Episode

41:56

Story Of Stephen Hough: Teen Killer That Evaded Justice For 40 Years

Story Of Stephen Hough: Teen Killer That Evaded Justice For 40 Years

42:39

The Crime That Changed The Death Sentence Law In France | Almost Perfect Crimes

The Crime That Changed The Death Sentence Law In France | Almost Perfect Crimes

52:58

Devil’s Island | Full Episode

Devil’s Island | Full Episode

42:59

Keith Charles: The Detective That Talks With The Dead | Real Crime

Keith Charles: The Detective That Talks With The Dead | Real Crime

48:46

Interviewing a Killer | The Fisherman (Full Documentary) | Real Crime

Interviewing a Killer | The Fisherman (Full Documentary) | Real Crime

51:43

Shocking Story Of The Bearded Bandit | The FBI Files

Shocking Story Of The Bearded Bandit | The FBI Files

49:42

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

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Murder

True Crime Documentary | Struggle for Justice | the Rapist of the East | Real Crime

True Crime Documentary | Struggle for Justice | the Rapist of the East | Real Crime

46:08

The Case of the Black Swan (Parts 1 & 2) | Full Episodes

The Case of the Black Swan (Parts 1 & 2) | Full Episodes

01:24:13

Terrifying Murder of Canadian Beauty Queen I Murder She Solved

Terrifying Murder of Canadian Beauty Queen I Murder She Solved

43:40

Devil From Hell: The Story Of A Gruesome Child Murderer | World’s Most Evil Killers

Devil From Hell: The Story Of A Gruesome Child Murderer | World’s Most Evil Killers

43:12

Dear Savanna | Full Episode

Dear Savanna | Full Episode

42:19

Found Dead In the English Channel | True Crime Scene S1 EP2 | Real Crime

Found Dead In the English Channel | True Crime Scene S1 EP2 | Real Crime

52:06

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

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

43:15

Mystery at Eagle Creek | Full Episode

Mystery at Eagle Creek | Full Episode

43:03

Devil’s Island | Full Episode

Devil’s Island | Full Episode

42:59

The Mysterious Disappearance And Killing Of Young Men

The Mysterious Disappearance And Killing Of Young Men

44:49

Uncovering the Deadly Plot at John Hadland Laboratories | Poisonous Liaisons | Real Crime

Uncovering the Deadly Plot at John Hadland Laboratories | Poisonous Liaisons | Real Crime

44:27

Mother and Daughter Team Up To Scam Pensioners' Inheritance | True Crime Documentary | Real Crime

Mother and Daughter Team Up To Scam Pensioners' Inheritance | True Crime Documentary | Real Crime

48:00

Capt. Shirley Russell: Marine Murdered Before She Could Get A Promotion | The FBI Files | Real Crime

Capt. Shirley Russell: Marine Murdered Before She Could Get A Promotion | The FBI Files | Real Crime

50:22

The Cult Murders Of 5 Innocent Followers | Confessions Of Crime

The Cult Murders Of 5 Innocent Followers | Confessions Of Crime

22:00

The KKK Hitman | True Crime Documentary | Real Crime

The KKK Hitman | True Crime Documentary | Real Crime

50:06

6/19: Relatives of slain congregants forgive Charleston suspect; Father's Day for Steve Hartman

6/19: Relatives of slain congregants forgive Charleston suspect; Father's Day for Steve Hartman

20:24

Death by Text | Full Episode

Death by Text | Full Episode

41:48

New Years Resolution To Become A Serial Killer | World’s Most Evil Killers | Real Crime

New Years Resolution To Become A Serial Killer | World’s Most Evil Killers | Real Crime

43:17

The Tragic Tale of Myra Hindley: The Lost Body And Failed Escape Attempts

The Tragic Tale of Myra Hindley: The Lost Body And Failed Escape Attempts

44:34

Ted Bundy: The Killer Of A Thousand Faces | World’s Most Evil Killers | Real Crime

Ted Bundy: The Killer Of A Thousand Faces | World’s Most Evil Killers | Real Crime

43:14

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Violence

Animals involved in murder? | "48 Hours" Full Episodes

Animals involved in murder? | "48 Hours" Full Episodes

02:05:38

Gary Ridgway: The Green River Killer | Real Crime

Gary Ridgway: The Green River Killer | Real Crime

45:10

Ed Gein: The Killer That Inspired Many Horror Films | World’s Most Evil Killers | Real Crime"

Ed Gein: The Killer That Inspired Many Horror Films | World’s Most Evil Killers | Real Crime"

42:46

Love, Crime And Power: Australia's Sociopathic Mobsters

Love, Crime And Power: Australia's Sociopathic Mobsters

41:06

From Broadmoor To King Of The Cobbles | Roy Shaw: The Killer Boxer | Real Crime

From Broadmoor To King Of The Cobbles | Roy Shaw: The Killer Boxer | Real Crime

49:42

Cruel Revenge | The FBI Files S5 EP 8 | Real Crime

Cruel Revenge | The FBI Files S5 EP 8 | Real Crime

49:34

Falsely Convicted By A Drug Addict's Confession: Senior Citizen Murder

Falsely Convicted By A Drug Addict's Confession: Senior Citizen Murder

46:00

The Murder Case That Inspired Charles Dickens | Murder Maps | Real Crime

The Murder Case That Inspired Charles Dickens | Murder Maps | Real Crime

44:00

How the FBI Cracked the Anchorage Triple Homicide | The FBI Files | Real Crime

How the FBI Cracked the Anchorage Triple Homicide | The FBI Files | Real Crime

52:05

Charismatic Cult Leader Charles Manson: Born To Kill | Real Crime

Charismatic Cult Leader Charles Manson: Born To Kill | Real Crime

45:05

Surviving South’s Africa’s Dangerous Underworld | Into The Shadows | Real Crime

Surviving South’s Africa’s Dangerous Underworld | Into The Shadows | Real Crime

51:17

South Africa's Fake Schools (Full documentary)

South Africa's Fake Schools (Full documentary)

24:16

Karen Pedley: The Women Who Turned Into Serial Arsonist | Made For Murder

Karen Pedley: The Women Who Turned Into Serial Arsonist | Made For Murder

43:18

Psycho Cop Turns Into Killer | The FBI Files

Psycho Cop Turns Into Killer | The FBI Files

50:02

The Monster's Mother: My Serial Killer Son | Dark Waters Of Crime

The Monster's Mother: My Serial Killer Son | Dark Waters Of Crime

45:42

A Rampage in New York | Maksim Gelman Killing Spree | Real Crime

A Rampage in New York | Maksim Gelman Killing Spree | Real Crime

45:12

John Wayne Gacy: A Real Life Nightmare | World’s Most Evil Killers | Real Crime

John Wayne Gacy: A Real Life Nightmare | World’s Most Evil Killers | Real Crime

42:55

Yosemite Park Killer: When A Victim Turns Into A Murderer | World’s Most Evil Killers | Real Crime

Yosemite Park Killer: When A Victim Turns Into A Murderer | World’s Most Evil Killers | Real Crime

43:16

International Manhunt: The Capture of a CIA Killer | The FBI Files

International Manhunt: The Capture of a CIA Killer | The FBI Files

51:12

Lucille's Killer: Murderer On The Loose | Australian Crime Stories

Lucille's Killer: Murderer On The Loose | Australian Crime Stories

46:10

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Unsolved Mysteries

The Killing of Cowboy Ray Green | Full Episode

The Killing of Cowboy Ray Green | Full Episode

40:58

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 the Jury Doesn’t Hear | "Married to Death" | "48 Hours" Podcast

What the Jury Doesn’t Hear | "Married to Death" | "48 Hours" Podcast

20:55

The Truth Will Set You Free | My Talk With A Murderer | Real Crime

The Truth Will Set You Free | My Talk With A Murderer | Real Crime

01:19:32

Highway Of Tears: The Unsolved Serial Murders Of Aboriginal Women (Full Documentary) | Real Crime

Highway Of Tears: The Unsolved Serial Murders Of Aboriginal Women (Full Documentary) | Real Crime

50:25

Hitman Kills The Wrong Woman By Mistake | Bizarre Murders | Real Crime

Hitman Kills The Wrong Woman By Mistake | Bizarre Murders | Real Crime

22:13

A Century-Old Mystery: The Murder of Connell Boyle in Donegal | Red Mist Killers | Real Crime

A Century-Old Mystery: The Murder of Connell Boyle in Donegal | Red Mist Killers | Real Crime

47:15

The Case Against Brooke Skylar Richardson | Full Episode

The Case Against Brooke Skylar Richardson | Full Episode

42:44

Solving the Unsolvable: 'Murder She Solved' Season 2 Compilation | Real Crime

Solving the Unsolvable: 'Murder She Solved' Season 2 Compilation | Real Crime

02:09:21

Cops Make Disturbing Discovery While Searching Killer's House

Cops Make Disturbing Discovery While Searching Killer's House

25:37

Kassanndra's Secret | Full Episode

Kassanndra's Secret | Full Episode

40:54

Reality Kills | Full Episode

Reality Kills | Full Episode

41:33

Who Took Our Dad? The Abduction of Ray Wright | Full Episode + Post Mortem

Who Took Our Dad? The Abduction of Ray Wright | Full Episode + Post Mortem

01:01:58

Bizarre Crime Capital Of The World? | City Of Evil | Real Crime

Bizarre Crime Capital Of The World? | City Of Evil | Real Crime

46:00

The Canoe Of Death | Dark Waters Of Crime | Real Crime

The Canoe Of Death | Dark Waters Of Crime | Real Crime

45:35

Crosley Green Comes Home | Full Episode

Crosley Green Comes Home | Full Episode

42:02

Death on the Hudson | Full Episode

Death on the Hudson | Full Episode

43:18

Murder by Clown | Full Episode

Murder by Clown | Full Episode

41:47

Sherri Rasmussen: The Unsolvable Crime With A Chilling Discovery | Guiltology

Sherri Rasmussen: The Unsolvable Crime With A Chilling Discovery | Guiltology

01:23:11

The Disappearance of Josephine Martin & Laura Lee May Francis | Taken | Real Crime

The Disappearance of Josephine Martin & Laura Lee May Francis | Taken | Real Crime

43:11

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