Question: Elvis González Valencia is the brother of the drug lord who goes by what nickname?
Sentence (from "Abigael González Valencia"): Abigael González Valencia (born October 18, 1972), commonly referred to by his alias El Cuini, is a suspected Mexican drug lord and former leader of the Jalisco New Generation Cartel (CJNG), a criminal group based in Jalisco.
Relevant evidence: Yes