Helén Nilsson 10-year-old Helén Nilsson was abducted on the night of 20 March 1989, and she was found murdered six days later. She had been alive for several days after the abduction and had been raped and assaulted.
Jannica Ekblad Jannica Ekblad was a victim of prostitution in
Malmö. She was found murdered on 4 August 1989, and since Olsson, who was convicted of killing her, claimed he never met her, details about her last hours in life are scarce. She talked to a female friend through her house phone, attempting to have her follow Ekblad and a man to a location outside of Malmö, but the friend was unable to do so. No names were used, but it is believed that the man was Olsson. Ekblad also visited a male friend of hers, who would occasionally provide her with heroin. Ekblad made a short visit and appeared worried. She was seen leaving together with a man and she was not seen again. In 2004, large amounts of Ekblad's blood were found in the summer cottage that belonged to Olsson at the time of the murder. This and other evidence, including identification of his sperm in her vagina, led to his conviction for her murder.
Connection between the murders A police technician investigating the two murders was in an early stage convinced that the same killer was responsible for both murders. Although there were clear differences in the two victims, being a young girl and an adult woman in prostitution, other parameters such as the type of location in which the bodies were discovered, the combination of strangulation and massive force against their heads as well as the presence of dog hairs on both bodies, made the investigators suspect there was a connection. Before the evidence against Olsson had been collected in 2004, however, there was no established connection between the murders. ==Time in psychiatric care==