Two of the most notorious unsolved cases in the annals of American crime, the murders of Tupac and Biggie have been the subject of exhaustive investigations, relentless speculation and a tangled web of rampant rumors, crackpot conspiracies and dark secrets. But two decades after deaths in the East Coast/West Coast Hip Hop rivalry, both murders remain officially unsolved. Are the two murders linked? Was Biggie's death order a retaliation to Tupac's murder? Could someone have wanted both men dead?