Follows the tragedy in which terrorists detonated a bomb at the Boston Marathon's finish line; they carried out the attack by placing two homemade pressure-cooker bombs that resulted in thre... Read allFollows the tragedy in which terrorists detonated a bomb at the Boston Marathon's finish line; they carried out the attack by placing two homemade pressure-cooker bombs that resulted in three fatalities and numerous injuries.Follows the tragedy in which terrorists detonated a bomb at the Boston Marathon's finish line; they carried out the attack by placing two homemade pressure-cooker bombs that resulted in three fatalities and numerous injuries.