Gonerka was arrested after police discovered body parts in a container and he confessed, although he initially claimed the death was an accident.
Gonerka died in 1987, and later investigations linked him to the da Costa case, but no conclusive forensic evidence was ever gathered.
[1] On 22 August 1974, 38-year-old Wanda Radosz (born 14 February 1936, in Poland) was murdered at Hyacintgatan 4 in the Holma residential area of the Hyllie district in Malmö.
[6] On the afternoon of 24 August, some children playing near a garbage container at Sorgenfrivägen 47 in Östra Sorgenfri, Malmö, discovered two human thighs wrapped in plastic.
[7] A team of about forty officers from the criminal police's investigation unit quickly located Gonerka after suspicions of murder arose from a discovery.
[11] On 28 August 1974, Chief Public Prosecutor Åke Sandberg submitted a detention request for Gonerka to the Malmö District Court.
He was initially suspected of aggravated assault and gross causing of death by negligence (grovt vållande till annans död).
At that time, a comprehensive psychiatric evaluation was ordered, which was completed in February 1975, after which the trial commenced at Malmö District Court.
[13] On 11 March 1975, he was sentenced by Malmö District Court to institutional psychiatric care (sluten psykiatrisk vård) for aggravated assault and causing of death by negligence.
[15] Norinder ran a small guesthouse in Ystad, and Andersson was a close friend who often visited and helped her with various tasks.
A woman, who did not want to reveal her name, claimed she hadn't seen her good friend Norinder for several days and was now concerned that something might have happened to her.
[16] After the discovery of Norinder and Andersson, the district prosecutor in Malmöhus County, Lennart Eliasson [sv], announced that the arrested man was being held in custody.
[17] On 19 August, Gonerka was remanded in custody by the Ystad District Court [sv], suspected of having stabbed the two to death.
[18] The Ystad District Court sentenced Gonerka to continued institutional psychiatric care (sluten psykiatrisk vård).
[15] In November 1983, Gonerka was released from Sidsjön Hospital [sv] in Sundsvall, six months before the murder of Catrine da Costa.
[19][4] The day after Catrine da Costa's dismembered body was found, the police received a tip about Gonerka.
[1] He lived in Södertälje but made regular trips to Stockholm, where he bought meat cuts, which he dismembered in his apartment and sold to acquaintances.
[1] In Per Lindeberg [sv]'s book Döden är en man (1999), he argues that the murder in 1974 was, in significant ways, identical to the one in 1984.
[22] In an application to the Chancellor of Justice in October 2007, complaints were made about the police's handling of the preliminary investigation into the suspected murder of Catrine da Costa.
The complaint specifically concerned the DNA analysis conducted on the hairs found on the towel discovered near Catrine da Costa's body.
In order to accommodate the public, efforts were made to obtain material from Gonerka through the pathologist at the Karolinska Hospital in Huddinge.
[23] After a review was requested, the deputy director of public prosecution at the Development Centre (Utvecklingscentrum) in Gothenburg decided on 23 March 2009, not to change the chief prosecutor's decision.
According to the prosecutor-general, there were grounds to issue a search warrant to obtain the tissue sample in order to clarify whether a trace could be linked to Gonerka.
The prosecutor applied to the Södertörn District Court [sv] for a search warrant at the Karolinska University Laboratory in Huddinge to gain access to the samples.
[23] The Court of Appeal rejected the prosecutor's request to seize a tissue sample in the investigation into Catrine da Costa's death.
While the prosecutor referred to strong public interest, they were unable to present concrete circumstances that would demonstrate that the action would advance the investigation, strengthen or weaken suspicions against any individual, or have significant relevance to the case.
[23] The preliminary investigation into the suspected murder of Catrine da Costa was closed on 1 July 2009, due to the statute of limitations.