Sources told Eyewitness News that the suspects showed up at a recording studio on West 37th Street early Thursday morning to settle a dispute.
34-year-old Kamir King, also known as the rapper Haarlem Star, was shot in the head at the studio.
24-year-old Devon Dillahunt was found in front of the building with a gunshot wound to the back. He had a gun under him.
Police are asking anyone with information to contact them.
Ex-Brit turned Manhattan resident since 2008.