During questioning in October, Mr. Madsen admitted to dismembering Ms. Wall’s body and to tossing body parts overboard, but he denied killing her.
The prosecution said on Tuesday that it would not reveal details on the evidence supporting the charges.
The exact circumstances of Ms. Wall’s introduction to Mr. Madsen remain unclear. In a pretrial hearing in September, he said that she had first contacted him to talk about rockets, but that she had then become intrigued by his submarines and wanted to go on one for a ride. It was not clear when the two first communicated, but they met for the first time on Aug. 10.
Ms. Wall, a prolific journalist who had written for The New York Times, graduated from the London School of Economics, received two master’s degrees from Columbia University and had lived in many countries. She reported from Uganda, Sri Lanka and Cuba, and died only miles from Trelleborg, Sweden, where she grew up, across the Oresund from Copenhagen.
Witnesses have described seeing Ms. Wall and Mr. Madsen onboard the submarine in Copenhagen port on Aug. 10. When she failed to return home that evening, her boyfriend contacted the authorities and the submarine was reported missing.
It was found the next morning floating in Koge Bay, south of Copenhagen, but began sinking when a private rescue party approached. Mr. Madsen was pulled from the waters.
Newsletter Sign Up
Thank you for subscribing.
An error has occurred. Please try again later.
You are already subscribed to this email.
At first, he told the police that he had dropped off Ms. Wall on shore, and denied any wrongdoing. He later said that he had buried her intact body at sea after an accident. When police investigators presented evidence tying him to metal pieces and straps used to wear her body down, he changed his explanation again and admitted to dismembering her.
Betina Hald Engmark, a lawyer for Mr. Madsen, said in a text message Tuesday afternoon that she would review the indictment with her client later on Tuesday, adding that she had no further comment about the charges.
A trial by jury is expected to begin on March 8 and to last eight days. Jakob Buch-Jepsen, a prosecutor, said in a short news briefing on Tuesday that he would seek a life sentence, which he added translates in Denmark to an average of 14 years in prison.
As a routine measure, the Danish Medico-Legal Council performed a psychiatric evaluation of Mr. Madsen, concluding “that safe custody may be required” if he is sentenced.
Ms. Wall’s mother, Ingrid Wall, said on Facebook on Monday that a Kim Wall Memorial Fund had raised $150,000 for scholarships. The first recipient will be announced on March 23, she said.
“In spite of everything, Kim lives on and continues to make a difference,” she wrote.