 Edgar Valdez Villarreal, the leader of Los Negros cartel enforcement, was arrested on August 30, 2010 outside Mexico City.On January 18, 2011, José Jorge Balderas Garza, known as "JJ", the lieutenant and financial operator of the Valdez-Villarreal faction, was captured.On September 12, 2010, Sergio Villarreal Barragán was arrested in the city of Puebla, east of Mexico City.