Fifteen years ago, on Monday (Oct. 30), Run-DMC member Jam Master Jay was shot to death, with the identity of his killer still unknown to this day.

As reported by the Associated Press, New York City police detectives have ruled that their investigation into the still-unsolved case has officially gone cold.

The hip-hop pioneer and posthumous Rock & Roll Hall of Fame inductee, born Jason Mizell, was fatally shot in the hallway of his recording studio in Queens, in 2002.

“It’s not resolved to the legal eye, but the street always talks,” Jeremy “JL” Lam, a family friend, told the AP.

Five years after the shooting, in 2007, federal prosecutors identified Ronald “Tenad” Washington as an armed accomplice of the unknown gunman who shot the rapper. However, he denied involvement and was never formally charged, due to a lack of witnesses coming forward and evidence.

Police have also stated on record that at least four other people were in the studio at the time, with some of Jam Master Jay’s family, such as his cousin Ryan Thompson, believing that no one has come forward due to fear of possibly seeing jail time as accomplices.

“We know it’s any anniversary but we don’t like to talk about it much anymore,” Jam Master Jay’s older sister, Bonita Jones, shared with the AP.

Jam Master Jay was 37 at the time of his untimely and tragic death.