Suspected assassin for Sinaloa drug cartel known as “El Nini” extradited to U.S.

Read MoreHe is thought to be a close associate of the sons of Mexican drug lord Joaquin “El Chapo” Guzman, who is serving a life sentence in the U.S.He is thought to be a close associate of the sons of Mexican drug lord Joaquin “El Chapo” Guzman, who is serving a life sentence in the U.S.