The 17-year-old boy who was charged with the murder itself is formally no longer in custody because he was given a place in a locked Sis-home, the State Institutions Board's special youth home, according to Dagens Nyheter.
The three men, who are 19, 31 and 32 years old, and who have been charged with, among other things, aiding and abetting murder, remain at large.
It was in March last year that a man died after being shot several times inside a gym in Vasastan.