Unfinished Lives: What If--?

I admit I read this close to 10 years ago. Then I loaned it out and never got it back. I kept meaning to find it and couldn't recall the title, until a librarian helped me. Anyway: it was a very neat book about "what if they didn't die". The subjects, including Elvis, Marilyn, JFK, etc, all received their "fatal" injury from real life, but lived, and the book has a different story for each character as to what their life may have been like. Very interesting premise. I just ordered 3, want to give a few away. Stace