Tim Russert has died of a heart attack, his family has told The New York Times.
No further details are available. More soon.
An emotional Tom Brokaw announces the grim news:
Crooks and Liars:
Update: John Amato. Wow, what shocking news. My heart goes out to his friends and family. When moments like these arrive, it’s a reminder to us all just how precious and fleeting our lives really are..