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Murder of Kim Wall

Swedish journalist Kim Wall was murdered aboard a private submarine in Danish waters on 10 August 2017 by its owner, Peter Madsen, who was later convicted and sentenced to life imprisonment.

SOLVED2010s

Køge Bay, Denmark

3 SOURCES4 COVERAGEUPDATED JUL 2026
Submarine UC3Nautilus seatrials 2008
Submarine UC3Nautilus seatrials 2008 — Credit: Frumperino · CC BY-SA 3.0

On 10 August 2017, Swedish freelance journalist Kim Wall boarded the midget submarine UC3 Nautilus in Køge Bay, Denmark, to interview its owner, Danish entrepreneur Peter Madsen. Wall had arranged the interview earlier that year, and boarded the submarine around 19:00 local time. The vessel never returned to its Copenhagen harbour, and Wall's partner, Ole Stobbe, reported her missing to police in the early hours of the next day. Nautilus was later sighted in Køge Bay and foundered around 11:00 that morning; Madsen was arrested after being rescued from the water.

Following the sinking, Madsen initially told police he had dropped Wall off on land, but later admitted to dumping her body at sea, claiming she had died in an accident aboard the submarine. He offered shifting accounts of the cause of death, first claiming she was struck by a hatch cover and later suggesting she died from exhaust gas exposure; post-mortem examinations did not support either account. On 21 August 2017, a cyclist discovered Wall's torso washed ashore on Amager; a post-mortem found fifteen stab wounds, mostly in the groin area, and metal had been affixed to the torso apparently to prevent it from floating. Between October and November 2017, further searches by police divers, assisted by Swedish police cadaver dogs, recovered Wall's head, legs, clothing, a knife, a saw, and her arms from Køge Bay.

During the investigation, prosecutors said police found videos on Madsen's computer depicting the killing of women, and that witnesses described Madsen watching decapitation videos and practising asphyxiation during sex. Prosecutor Jakob Buch-Jepsen stated that no traces of Madsen's DNA were found on Wall's body, though semen traces were found on his underclothing; Madsen said he had not ejaculated in Wall's presence. On 16 January 2018, Madsen was formally charged with murder, indecent handling of a corpse, and sexual assault, with prosecutors alleging he had tortured Wall before killing her by cutting her throat or strangling her.

Madsen's trial began on 8 March 2018 at Copenhagen City Court. On 25 April 2018, he was convicted on all three charges and sentenced to life imprisonment. He appealed, but the sentence was upheld by the Eastern Denmark High Court on 26 September 2018. In August 2018, Madsen was hospitalised after being attacked by a fellow inmate. In a Danish documentary broadcast in September 2020, Madsen admitted that he had killed Kim Wall. On 20 October 2020, he briefly escaped custody by threatening a prison employee before being apprehended by police close to the prison.

Wall's case drew wide international attention and has since been the subject of several television and documentary productions, including Tobias Lindholm's dramatised series The Investigation (2020). Her family and friends established the Kim Wall Memorial Fund to support journalists covering underreported stories.

Start hereVIDEOA Submarine Went Missing & Body Parts Were Found A Week Later In The WaterRotten Mango · YOUTUBE · 1 hr 4 min

Key facts

Victims
Kim Wall
Date
2010s
Location
Køge Bay, Denmark
Case status
solved

Case timeline

  1. 2017-08-10

    Kim Wall boards Peter Madsen's submarine UC3 Nautilus in Køge Bay for an interview; the vessel fails to return to harbour and she is reported missing.

  2. 2017-08-11

    Nautilus is found sunken in Køge Bay; Madsen is rescued and arrested.

  3. 2017-08-21

    Wall's torso is found washed ashore on Amager, showing fifteen stab wounds.

  4. 2017-09-05

    Madsen testifies that Wall died after being struck by the submarine's hatch cover.

  5. 2017-10-06

    Police divers recover Wall's head, legs, clothing, and a knife from Køge Bay.

  6. 2017-10-12

    A saw is found in the water during the search.

  7. 2017-11-21

    One of Wall's arms is found by police divers.

  8. 2017-11-29

    Wall's other arm is found by police divers.

  9. 2018-01-16

    Madsen is charged with murder, indecent handling of a corpse, and sexual assault.

  10. 2018-03-08

    Madsen's trial begins at Copenhagen City Court.

  11. 2018-04-25

    Madsen is convicted on all charges and sentenced to life imprisonment.

  12. 2018-08

    Madsen is hospitalised after being attacked by another inmate in prison.

  13. 2018-09-26

    The Eastern Denmark High Court upholds Madsen's sentence on appeal.

  14. 2020-09

    In a Danish documentary, Madsen admits that he killed Kim Wall.

  15. 2020-10-20

    Madsen briefly escapes prison by threatening an employee before being apprehended nearby.

Best coverage

Titles and descriptions are the creators’ own and may not reflect current legal status; see the dossier above for sourced case facts.

VIDEO

Rotten Mango / 1 hr 4 min

A Submarine Went Missing & Body Parts Were Found A Week Later In The Water

VIDEO

Dr. Todd Grande / 12 min

Peter Madsen (Murder of Kim Wall) | Mental Health & Personality

VIDEO

Bella Fiori / 25 min

The Case of Kim Wall | The Submarine Murder

VIDEO

That Chapter / 22 min

Inventing a Submarine to Hide his Evil Crimes

People

  • Kim Wall

    VICTIM

    Swedish freelance journalist killed aboard the submarine UC3 Nautilus on 10 August 2017.

  • Peter Madsen

    CONVICTED

    Danish entrepreneur and submarine owner convicted of murder, indecent handling of a corpse, and sexual assault; sentenced to life imprisonment.

Roles reflect public records and court outcomes at the time of writing — supporting citations are on file under Sources.

Archival records

  • Submarine UC3Nautilus seatrials 2008

    archival location

    Submarine UC3Nautilus seatrials 2008

    Credit: Frumperino · CC BY-SA 3.0 · Source

  • PeterMadsen clipportrait

    portrait public figure

    PeterMadsen clipportrait

    Credit: Joi Ito · CC BY 2.0 · Source

  • SWI ML244133 DSC8398.2K

    unclassified

    SWI ML244133 DSC8398.2K

    Credit: Sonny Windstrup · Public domain · Source

  • Peter Madsen and Kristian von Bengtson

    unclassified

    Peter Madsen and Kristian von Bengtson

    Credit: Necessary Evil · Public domain · Source

  • Peter Madsen (1)

    unclassified

    Peter Madsen (1)

    Credit: Joi · CC BY 2.0 · Source

  • Peter Madsen (inventor)

    portrait public figure

    Peter Madsen (inventor)

    Credit: Necessary Evil · Public domain · Source

  • Kristian Peter Launch2011

    unclassified

    Kristian Peter Launch2011

    Credit: copenhagensuborbitals · CC BY-SA 3.0 · Source

Places

Common questions

What happened to the victim?
Swedish journalist Kim Wall was murdered aboard a private submarine in Danish waters on 10 August 2017 by its owner, Peter Madsen, who was later convicted and sentenced to life imprisonment.
Where did the murder happen?
Køge Bay, Denmark.
Who was convicted?
Peter Madsen (Danish entrepreneur and submarine owner convicted of murder, indecent handling of a corpse, and sexual assault; sentenced to life imprisonment.).
What is the current status of the case?
Status: solved. Last verified July 2026.

Sources

  1. ENCYCLOPEDICMurder of Kim WallWikipedia · 2026-07-05
  2. PRESSPolice find head of murdered Swedish journalist Kim WallThe Guardian · 2026-07-05
  3. PRESSContemporaneous coverage of the Kim Wall caseBBC News · 2026-07-05

Record history

First published
JUL 06, 2026
Last verified against sources
JUL 06, 2026

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