From the Washington Post:

W. Mark Felt Sr., the associate director of the FBI during the Watergate scandal who, better known as "Deep Throat," became the most famous anonymous source in American history, died yesterday. He was 95.

Felt died at 12:45 p.m. at a hospice near his home in Santa Rosa, Calif. where he had been living since August.

Felt "was fine this morning" and was "joking with his caregiver," according to his daughter, Joan Felt. She said in a phone interview that her father ate a big breakfast before remarking that he was tired and went to sleep.

"He slipped away," she said.