First pictures of 'Boston bombers': FBI releases chilling images of TWO suspects carrying backpacks through marathon crowds

 

 The blurry images show the as-yet unidentified men at the scene of both bomb blasts along the finishing line on Boylston Street moments before the detonations. Designated by FBI Special Agent Richard DesLaurier as 'suspect one' and suspect two' - suspect one is dressed in dark clothes wearing sunglasses, while suspect two is clearly wearing a white baseball cap on backwards - both are seen in the images with back-packs on.