It was 19 years ago that Nick Broomfield, that spiky and compelling one-man band of documentary filmmakers, released “Biggie & Tupac” (2002), his chilling, no-frills, down-the-mean-streets-of-Compton investigative look into the murders of Tupac Shakur and Biggie Smalls. The movie arrived at a moment when Broomfield had begun to style himself as a kind of high-end […]