Question: American Gangster is fictionally based on the career of which Harlem-based drug trafficker?
Sentence (from "Héctor Manuel Sauceda Gamboa"): He was the brother of the drug lord Gregorio Sauceda Gamboa, another high-ranking drug trafficker who worked under the tutelage of Osiel Cárdenas Guillén, the former top leader of the cartel.
Relevant evidence: No