Gun Violence

(Photo) President Obama's First Reaction to Newtown

01.04.13 5:08 PM ET

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." (Official White House Photo by Pete Souza)

Souza's entire gallery can be seen here.