In the series finale, the story of the mysterious blood found outside the crime scene is at long last revealed. An additional Sutton report enters the picture, focused on someone unexpected. Long overlooked, another member of the Skakel household staff comes under scrutiny. Amanda Knox weighs in on her experience of being wrongfully convicted of murder. Andrew shares final revelations and reflections about the case. Hosted by Simplecast, an AdsWizz company. See <a href="https://pcm.adswizz.com">pcm.adswizz.com</a> for information about our collection and use of personal data for advertising.

In the series finale, the story of the mysterious blood found outside the crime scene is at long last revealed. An additional Sutton report enters the picture, focused on someone unexpected. Long overlooked, another member of the Skakel household staff comes under scrutiny. Amanda Knox weighs in on her experience of being wrongfully convicted of murder. Andrew shares final revelations and reflections about the case. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In the series finale, the story of the mysterious blood found outside the crime scene is at long last revealed. An additional Sutton report enters the picture, focused on someone unexpected. Long overlooked, another member of the Skakel household staff comes under scrutiny. Amanda Knox weighs in on her experience of being wrongfully convicted of murder. Andrew shares final revelations and reflections about the case. Hosted by Simplecast, an AdsWizz company. See <a href="https://pcm.adswizz.com" rel="noopener noreferrer">pcm.adswizz.com</a> for information about our collection and use of personal data for advertising.

Known Unknowns

The night before Halloween 1975, 15-year-old Martha Moxley was found bludgeoned to death outside her family’s home in the tony Greenwich, Connecticut, enclave of Belle Haven. The local police, used to dealing more with traffic stops than a high-profile murder, grappled with a lack of forensic evidence – or a motive. They had their suspects of course. The creepy neighbor. The eldest teenage son of the Skakel family next door. The Skakel children’s burly tutor. But without concrete evidence or a confession, the case stalled out. For decades, it remained unsolved and it seemed like no one would ever be charged with her killing. But then, a series of improbable events involving, among others, Dominick Dunne, William Kennedy Smith, and Mark Fuhrman, compounded to deliver the public a new suspect – 39-year-old Michael Skakel, who’d been 15, like Martha, at the time of the crime. The arrest made national headlines – and not just because Michael Skakel was an accused killer. He was also a cousin of the Kennedys. Skakel’s 2002 high-profile murder trial was a media feeding frenzy. Reporters wondered – would this rich, privileged son of a scion get away with it? Despite flimsy evidence and witnesses with questionable backgrounds, a jury convicted Michael. For many, it felt like a fitting end to the Moxley case. Finally, justice was served. Sentenced to 20 years to life in prison, Michael Skakel, who’d always proclaimed his innocence, fought for his freedom. In 2018, his conviction was overturned – and prosecutors declined to re-prosecute. Innocent in the eyes of the law, Michael remains guilty in the eyes of many. Where does the truth lie?  Dead Certain: The Martha Moxley Murder, is an immersive, fresh take on this infamous case. The series is hosted by veteran journalist Andrew Goldman, hired a decade ago by Skakel’s cousin RFK Jr. to research a book about the case. But after the book was published, Goldman found he couldn’t let it go. New episodes every Tuesday through January 20, 2026.

True Crime

The night before Halloween 1975, 15-year-old Martha Moxley was found bludgeoned to death outside her family’s home in the tony Greenwich, Connecticut, enclave of Belle Haven. The local police, used to dealing more with traffic stops than a high-profile murder, grappled with a lack of forensic evidence – or a motive. They had their suspects of course. The creepy neighbor. The eldest teenage son of the Skakel family next door. The Skakel children’s burly tutor. But without concrete evidence or a confession, the case stalled out. For decades, it remained unsolved and it seemed like no one would ever be charged with her killing. But then, a series of improbable events involving, among others, Dominick Dunne, William Kennedy Smith, and Mark Fuhrman, compounded to deliver the public a new suspect – 39-year-old Michael Skakel, who’d been 15, like Martha, at the time of the crime. The arrest made national headlines – and not just because Michael Skakel was an accused killer. He was also a cousin of the Kennedys. Skakel’s 2002 high-profile murder trial was a media feeding frenzy. Reporters wondered – would this rich, privileged son of a scion get away with it? Despite flimsy evidence and witnesses with questionable backgrounds, a jury convicted Michael. For many, it felt like a fitting end to the Moxley case. Finally, justice was served. Sentenced to 20 years to life in prison, Michael Skakel, who’d always proclaimed his innocence, fought for his freedom. In 2018, his conviction was overturned – and prosecutors declined to re-prosecute. Innocent in the eyes of the law, Michael remains guilty in the eyes of many. Where does the truth lie? Dead Certain: The Martha Moxley Murder, is an immersive, fresh take on this infamous case. The series is hosted by veteran journalist Andrew Goldman, hired a decade ago by Skakel’s cousin RFK Jr. to research a book about the case. But after the book was published, Goldman found he couldn’t let it go. New episodes every Tuesday through January 20, 2026.

Share Known Unknowns

Sign up to save your podcasts

Known Unknowns

Known Unknowns

More shows like Dead Certain: The Martha Moxley Murder

Meet the Press

NBC Nightly News with Tom Llamas

20/20

48 Hours

In The Dark

Meet the Press Archive

Dateline NBC

Article II: Inside Impeachment

Byers Market

The Binge Cases: U R NEXT

The Binge Crimes: The Poet

Southlake

Mind of a Monster: The Hollywood Ripper

Truthers: Tiffany Dover Is Dead*

Betrayal Weekly

In Their Court

Bone Valley

Letters from Sing Sing

Grapevine

Royal Swindle

Top Story with Tom Llamas

Here's the Scoop

Deadly Engagement

The Hand in the Window

The Drink with Kate Snow