After much speculation, it's now official: Isaiah Washington won't be back on Grey's Anatomy. The actor, who got into trouble last fall for using a homophobic slur when referring to castmate T.R. Knight, got notice yesterday that he was "not invited back to the show next season," according to his publicist Howard Bragman. Isaiah then released this statement, lifted from the movie Network, "I'm mad as hell, and I'm not going to take it anymore!" We're not sure what that means exactly, but this sucks for you Isaiah. Sorry!