boston marathon lockdown

Marc and Alicia discuss the two explosions that rocked the Boston Marathon near the finish line on Monday, causing multiple casualties, killing three, and sending the city into chaos.
President Obama gives his reaction to the Boston Marathon explosion.
WATCH: Two explosions rocked the Boston Marathon near the finish line, causing multiple casualties and sending the city into chaos. Another explosion occurred at the JFK Library, but authorities were unsure if the incidents were linked.
President Obama gives his reaction to the Boston Marathon explosion. Two explosions rocked the Boston Marathon near the finish line, causing multiple casualties and sending the city into chaos. Another explosion occurred at the JFK Library, but authorities were unsure if the incidents were linked.
With investigations underway the origin of this tragedy is still unknown. What is confirmed is that there were two explosions
cell phone service gods please get me in contact with my big brother in boston please please please — Regina Victoria (@superduperegina
About three hours after the winners crossed the line, there were two loud explosions resulting in injuries on the north side of Boylston Street, just before the photo bridge that marks the finish line.