Raw Footage 2 Explosions At Boston Marathon TOPICS:2 explosionsBombs Explode At Boston Marathonbombs go off BostonBoston Marathon Bombing AttackBoston Marathon Explosionscoordinated bombingpatriots dayRaw FootageRaw Footage 2 Explosions At Boston Marathonterrorismterrorist attack Posted By: BMartin1776 April 15, 2013 If you watch closely towards the back right of the screen you will see the other explosion go off.