I'm shocked and saddened and reminded once again of the fragile nature of life after hearing that NBC's Tim Russert died this afternoon of an apparent heart attack.

Russert, 58, reportedly collapsed in his Washington office while recording voiceovers for this Sunday's Meet The Press. He could not be revived.

Click here for more information on Russert and his tragic passing. And in honor of this fine man whose death comes just two days before Father's Day, take a look at his book, Big Russ and Me -- a story about his relationship with his father. Russert himself was father to one son, Luke.