Just days after the announcement of the death of DJ Unk, the Atlanta rapper known for mid-2000s hits like “Walk It Out” and “2 Step,” his wife has revealed the cause of his death.

The music world has lost a star. Rapper DJ Unk, an Atlanta, Ga., native known for his 2006 hit song “Walk It Out,” has died, according to his family and friends. He was 43. “I just lost my ...