'Tony Tormenta' Gulf Cartel Boss Killed in Matamoros

Antonio Ezequiel Cárdenas Guillén 'Tony Tormenta,' head of the Gulf Cartel's Matamoros plaza, is killed in a massive firefight with marines in Matamoros, Tamaulipas. The battle lasts several hours and involves hundreds of cartel gunmen attempting to rescue their leader. A marine helicopter is shot down during the operation. Tony Tormenta's death deepens the Gulf Cartel's crisis and hastens the final rupture with Los Zetas.