A Brooklyn rapper was shot when gunfire erupted outside the studios of the troubled Hot 97 radio station in the West Village and then went inside to sit for an interview. Police say 28-year-old Jamal Wollard, who goes by the rap name Gravy, was hit by one bullet as he arrived at the station on Hudson Street just after 9:30 p.m. Wollard arrived with a large entourage of about 30 cheering people wearing T-shirts with his name on it. But then the gunfire erupted, and the people began screaming and running for their lives. Eyewitness News has learned at least...