Jam Master Jay’s business partner has testified that when he saw the Run-DMC star had been shot in his recording studio, he grabbed a gun and went to look for whoever had done it.

Jam Master Jay was known for his anti-drug advocacy as part of the groundbreaking rap group Run-DMC.

Yarrah Concepcion was a teenaged aspiring R&B singer and rapper when she got an appointment with Jam Master Jay at his New York City recording studio.

A witness to the killing of Run-DMC's Jam Master Jay in 2002 has testified in the trial for the two men charged in his shooting.

The 2002 killing of Run-DMC’s Jam Master Jay has stood for years as one of the hip-hop world’s most infamous and elusive crimes.

Two men will be indicted in the killing of hip-hop pioneer D.J. Jam Master Jay, who was killed in Queens, New York in 2002, according to the New York Times. The New York Times reported Monday that federal prosecutors will announce an indictment of two men, Ronald Washington and Karl Jordan, Jr., who have long been suspected in the murder. Jam Master Jay was a member of the ground-breaking hip hop group, Run-DMC. He was gunned down at a recording studio in Queens in 2002.