Analysis of information sources in references of the Wikipedia article "Atentado à Maratona de Boston de 2013" in Portuguese language version.
Boston public health officials said Tuesday that they have revised downward their estimate of the number of people injured in the Marathon attacks, to 264.
As family members called on him to surrender, a 19-year-old college student remained on the run Friday as thousands of police armed with rifles and driving armored vehicles combed the nearly deserted streets of a region on virtual lockdown
