Question: La Barredora was a gang that declared war on the leader of the cartel based where?
Sentence (from "Edgar Valdez Villarreal"): Edgar Valdez Villarreal (born August 11, 1973) also known as La Barbie ("The Barbie"), is a Mexican American suspected drug lord and leader of the Beltrán Leyva Cartel, a criminal group based in Sinaloa.
Relevant evidence: Yes