Danish inventor Peter Madsen has been sentenced to life without parole for the murder of Swedish journalist Kim Wall on his submarine last year.

Prosecutors said that Madsen planned to kill the 30 year old by either suffocation or cutting her throat. Wall disappeared after she visited Madsen onboard his homemade submarine to conduct an interview in August last year. Her dismembered remains were found at sea 11 days later.

Madsen previously admitted to mutilating her body but denied intentionally killing her, claiming she died in an onboard accident. He was found guilty of her murder and dismemberment Wednesday.

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