Peter "Rocket" Madsen, the Danish inventor who sought to put himself into space aboard an amateur-built rocket and built (with the aid of colleagues) his own submarine-the UC3 Nautilus-was found guilty today by a judge and two jurors in the freaky death of journalist Kim Wall, who disappeared last August while aboard the Nautilus.
Wall's dismembered body was found off the coast of Copenhagen in August.
Prosecutor Jakob Buch-Jepsen had asked for the maximum possible sentence, life in prison, which is rare in Denmark, even in murder cases, according to The New York Times.
The submarine sank, Madsen escaped, and Wall's dismembered body washed up on Copenhagen's shores days later, police said.
Ms Wall's dismembered remains were discovered at sea in August previous year, more than a week after she went missing.
Madsen, who was arrested the next day, changed his story on what had happened multiple times, ultimately claiming she had died from inhaling toxic exhaust fumes.
In court he admitted, however, dismembering her body in order to lift it out of the vessel's hatch.
After a brief out-of-courtroom meeting, Madsen's lawyer said he would appeal the verdict - May 9 is the latest date for doing so.
The cause of death has never been established.
He was charged with murder, dismemberment and indecent handling of a corpse.
A court sketch shows Peter Madsen trial in progress.
Investigators found Wall's DNA on Madsen's body, including cuts on his face and neck.
Madsen stood quietly listening as the judge read out the verdict on Wednesday.
After being rescued, Madsen told authorities that before the submarine went down he had dropped Wall off on Copenhagen's trendy Refshale island, where she lived and he kept his workshop.
Wall, a freelance reporter, had set off with the eccentric, self-titled "inventrepreneur" on his vessel on the evening of August 10 to interview him.
During the trial, Madsen appeared uninterested when the prosecution detailed a court-ordered psychiatric report describing him as "emotionally impaired with severe lack of empathy, anger and guilt" and having "psychopathic tendencies".
Early the following morning, she had failed to return home and her boyfriend reported her missing. Videos and internet searches related to the beheading of women Madsen allegedly watched the night before he met Wall on the submarine were shown to the judges as evidence of premeditation.
"What do you do when you have a large problem? The blood belonged to Kim Wall", the prosecutor told the court. Prosecutors said the killing was premeditated, but they did not provide a motive. Finally, after her head was recovered without signs of a head blow, he said that she had died of asphyxiation from carbon monoxide.