"The President reacts as John Brennan briefs him on the details of the shootings at Sandy Hook Elementary School in Newtown, Conn. The President later said during a TV interview that this was the worst day of his Presidency."
The Sandy Hook Elementary School shooting was the sixteenth mass shooting that took place in the United States in 2012, and it cost the lives of 26 people, 20 of them first graders.
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