The person who was detained, suspected of aiding and abetting the double murder in Kallhäll, has been released.
It was on Monday that two men were found shot to death in a car in Kallhäll north of Stockholm.
Shortly thereafter, a person was arrested, and later detained, suspected of aiding and abetting murder – and this person has now been released, says prosecutor Maria Hävermark to TT.
No further details will be given, with reference to the secrecy of the preliminary investigation, but earlier in the week she told TT that the circumstances suggest that there are gang connections.
The incident is being investigated as murder and serious weapons offenses, no suspected shooter has yet been arrested.