Wonder, Obsession, and Murder in the World of Amateur Submarines,” Matthew Gavin Frank dives into the subculture of DIY ...

(FILES) This file photo taken on August 12, 2017 shows allegedly Swedish journalist Kim Wall standing in the tower of the private submarine "UC3 Nautilus" on August 11, 2017 in Copenhagen Harbor.

On Aug. 10, 2017, Wall boarded Madsen’s 33-ton, nearly 18-meter-long (60-foot-long) UC3 Nautilus submarine in Copenhagen. Eleven days later, her dismembered torso was found at sea off Copenhagen.

Madsen was convicted of the brutal murder of journalist Kim Wall onboard his homemade submarine, UC3 Nautilus, after she boarded it to interview him on 10 August 2017. He later dismembered her ...

Kim Wall was killed by Peter Madsen after being invited aboard his UC3 Nautilus submarine for an interview. Facebook. He threatened a prison psychologist and an officer with an imitation pistol ...

The UC3 Nautilus was his third homemade submarine. In 2014, he created the Rocket Madsen Space Lab with the goal of developing a crewed spacecraft.

"The Investigation" on HBO tells the story of a shocking murder that made headlines across the world—but the docu-drama takes a different approach from many true crime shows.

Peter Madsen, the man known for killing and dismembering a Swedish journalist while aboard his homemade submarine, briefly escaped a prison where he is serving a life sentence. Madsen, 49, escaped ...

Madsen's UC3 Nautilus submarine sits on a pier behind police tape in Denmark's Copenhagen harbor in 2017 as authorities investigated the disappearance of Swedish journalist Kim Wall.

Peter Madsen, who brutally killed Swedish journalist Kim Wall on board his submarine, UC3 Nautilus, has tried to escape prison in Albertslund, Denmark ...

Peter Madsen was sentenced to life without parole in 2018 for the murder and sexual assault of Swedish journalist Kim Wall on-board his submarine, UC3 Nautilus.