Officials confirmed Thursday that a 14-year-old boy who carried out assassinations for a Mexican drug gang is a U.S. citizen MEXICO CITY (December 9, 2010)—A suspected 14-year-old drug gang killer in Mexico is a U.S. citizen, officials confirmed Thursday. U.S. Embassy spokesman Alexander Featherstone said U.S. authorities also confirmed the boy’s 19-year-old sister is an American citizen. He said embassy officials have visited both in prison. He said Thursday the embassy "will continue to provide consular services to the boy and his sister," but provided no other details. The boy and his sister were arrested a week ago as they...