** FILE ** Sen. Joe Manchin, D-W.Va., becomes emotional as he meets in his office with families of victims of the Sandy Hook Elementary School shooting in Newtown, Conn., on the day he announced that they have reached reached a bipartisan deal on expanding background checks to more gun buyers, at the Capitol in Washington, Wednesday, April 10, 2013. (AP Photo/J. Scott Applewhite)
The Washington Nationals and Miami Marlins stand for a moment of silence honoring the victims of the Sandy Hook Elementary School shooting before the opening day baseball game in Washington, on Monday, April 1, 2013. (AP Photo/Alex Brandon)
The Washington Nationals and Miami Marlins stand for a moment of silence honoring the victims of the Sandy Hook Elementary School shooting before the opening day baseball game in Washington, on Monday, April 1, 2013. (AP Photo/Alex Brandon)
The Washington Nationals and Miami Marlins stand for a moment of silence honoring the victims of the Sandy Hook Elementary School shooting before the opening day baseball game in Washington, on Monday, April 1, 2013. (AP Photo/Alex Brandon)
President Obama presents a 2012 Citizens Medal to Donna and Carlos Soto, the parents of slain Sandy Hook Elementary School teacher Victoria Soto, on Feb. 15, 2013, during a ceremony in the East Room of the White House. (Associated Press)
** FILE ** A police officer leads two women and a child from Sandy Hook Elementary School in Newtown, Conn., on the day of the mass killings. (Newtown Bee via Associated Press)