President Barack Obama offers remarks during a memorial for the victims of the Navy Yard shootings at Marine Barracks Washington, D.C. in Washington, D.C., on Sunday, September 22, 2013. (Mike Morones/Staff)
First Lady Michelle Obama comforts a mourner at a memorial for the victims of the Navy Yard shootings at Marine Barracks Washington, D.C. in Washington, D.C., on Sunday, September 22, 2013. (Mike Morones/Staff)
