Eyewitness: Authorities “Must Have Known” About Bombing [W/ VIDEO]
Eyewitness: Authorities "Must Have Known" About Bombing [W/ VIDEO]0 Spotters on roof for "drill" before explosions at Boston marathon Paul Joseph Watson Infowars.com April 16, 2013 Despite police refusing to acknowledge that they had any warning of the bombing attack on the Boston Marathon, eyewitness Ali Stevenson says authorities "must have known" of a threat because they announced a drill beforehand and had spotters on the roof at the start of the race.