The victim, Charles Limerius, was shot dead on Kantatgatan in Malmö, just 20 metres from his front door in Malmö’s Lindängen neighbourhood.
Limerius’s killing is one of several fatal shootings that took place in Sweden’s third-largest city in late 2011 and early 2012.
Two of the women are suspected of instigating a murder, while the third is accused of protecting a criminal, Malmö police spokesperson Anders Lindell told the TT news agency.
Police have previously arrested a 28-year-old father of two, suspected of carrying out the killing, who remains in custody. He denies having committed the crime, however.
While the 28-year-old has no previous police record, he’s known to have connections to criminal networks in Malmö.
Early in May, police went public with the theory that Limerius wasn’t the intended target for the shooting.
“One of the leads we’re working on supposes he was shot by mistake,” police investigator Monica Olhed told TT at the time.
A man with a lengthy criminal record lived at the same address as Limerius and could have been the person the killer had intended to shoot, according to the theory.
Media reports speculate that the killer was out for revenge for a murder that took place in 1992.
The 28-year-old man currently in custody is reported to have ties to a female relative of the victim of the 1992 killing.