Jam Master Jay's business partner says he grabbed a gun and sought whoever had killed the rap star

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

Rap legend Jam Master Jay lay, mortally wounded, on his studio floor. One of his aides was in pain from a gunshot to the leg. Another was crying and screaming on the floor.

Dashing in from an adjoining room, Randy Allen took in the bloody scene, grabbed a gun and charged outside to seek whoever had done it, he testified Tuesday at a federal murder trial over the October 2002 shooting of the Run-DMC star in the New York borough of Queens.

Allen, who was the DJ's business partner and childhood friend, told jurors he wanted “to try at least to see who it was.” He didn't see anyone running from the studio, he said, so he stashed the gun in the wheel well of a parked car and ran to a nearby police station for help.

Allen was the last to testify among five prosecution witnesses who say they were in various parts of the studio when the turntable titan, born Jason Mizell, was killed. But there is more to come in the trial of what has been one of the highest-profile and hardest-to-solve killings in the hip-hop world.

The defendants, Karl Jordan Jr. and Ronald Washington, have pleaded not guilty.