NBC Nightly News with Brian Williams
LIVE NOW: Tribute to mark one year anniversary of the Boston Marathon bombings WATCH: http://nbcnews.to/1l1I80K

LIVE NOW: Tribute to mark one year anniversary of the Boston Marathon bombings 

WATCH: http://nbcnews.to/1l1I80K

President Obama statement on the one year anniversary of the Boston Marathon bombings

President Obama statement on the one year anniversary of the Boston Marathon bombings

11 photos that will make you want to go to next year’s Cherry Blossom Festival in Washington, D.C.More photos: http://nbcnews.to/1m4UMju

11 photos that will make you want to go to next year’s Cherry Blossom Festival in Washington, D.C.

More photos: http://nbcnews.to/1m4UMju

Infographic: The multi-racial and ethnic shift in America More: http://nbcnews.to/1iNMs2d

Infographic: The multi-racial and ethnic shift in America 

More: http://nbcnews.to/1iNMs2d

Police release booking photo of woman suspected of throwing a shoe at Hillary Clinton
More: http://nbcnews.to/1ndlVxZ

Police release booking photo of woman suspected of throwing a shoe at Hillary Clinton

More: http://nbcnews.to/1ndlVxZ