Mexico says it arrested Zetas regional boss Carlos Oliva Castillo . By 2009 he was in charge of the cartel 's finances in Nuevo Leon , before taking charge of all operations in that state , the ministry said . He was as high as third in the organization . The U.S. State Department has said that a number of Mexican officials have been killed since President Felipe Calderon took office last year and launched an offensive against drug cartels.
Mexico says it arrested Zetas regional boss Carlos Oliva Castillo . He was as high as third in the organization . The U.S. State Department has said that a number of Mexican officials have been killed since President Felipe Calderon took office last year and launched an offensive against drug cartels.