Biggie & Tupac (2002)
Biggie & Tupac is a 2002 feature-length documentary film about murdered rappers Christopher "Notorious B.I.G." Wallace and Tupac "2Pac" Shakur by Nick Broomfield. Broomfield suggests the two murders were planned by Suge Knight, head of Death Row Records. Collusion by the LAPD is also implied. While the film remains inconclusive, when asked "Who killed Tupac?" in a BBC Radio interview dated March 7, 2005, Broomfield stated (quoting Snoop Dogg) "The big guy next to him in the car... Suge Knight."
More at Wikipedia.