Washington Mayor Vincent Gray joined president Obama's call for action on gun control, mentioning that one of the Navy Yard victims, Arthur Daniels, had already lost his 14-year-old son to gun violence and citing the string of mass public shootings in recent years.
President Obama said: "We Americans are not an inherently more violent people than folks in other countries, we are not inherently more prone to mental health problems, the main difference that sets our nation apart, what's different in America is it's easy to get your hands on a gun."
More top news
Europe's largest bank had earlier warned it was considering relocating over fears of stricter regulation.
Expect it to be bitterly cold in the biting wind chill.
It was DiCaprio's night as he won best actor for The Revenant, which swept the board with best film and best director gongs