Question: The cartel Rafael Caro Quintero's brother was the founder and former leader of was based in what country?
Sentence (from "Rafael Caro Quintero"): Rafael Caro Quintero (born October 3, 1952) is a Mexican drug trafficker who founded the now-disintegrated Guadalajara Cartel with Miguel Ángel Félix Gallardo and other drug traffickers in the 1970s.
Relevant evidence: No