Obama: Navy shooting 'a cowardly act'
16 September 2013 Last updated at 18:35 BST
President Obama has given a speech on the Washington Navy Yard shooting.
Speaking at the White House, President Obama said: "Today the Navy faced the unimaginable violence they wouldn't have expected here at home."
He called it a "cowardly act" and said that he wants the investigation into the shooting to be "seamless".