The woman died March 12 in the couple’s apartment in southern Stockholm. The man is accused of hitting the woman over the head with a frying pan before stabbing her to death.
Prosecutor Cecilia Cassmer said that the man had “described what happened in questioning.”
After her death, the man allegedly then rolled the body up in a rug and left her on the balcony outside. The next day the man used a saw to cut the body into pieces and put her in a plastic sack before trying to sink her in the Södra Yngern lake outside of Nykarn.
He was noticed heaving the bag into the water and decided to leave the rest of the body in a ditch near Ekebo, near Södertälje.
The man killed the woman because she threatened to leave him and move to Finland with the children, said Cassmer.
Australian paper The Age reports that the victim came from Canberra, and had lived with her partner in Australia for several years, but had moved to Stockholm in January.
The man has been psychiatrically evaluated, but the results are not public. The case is set to begin next week.