Barbara Sinatra, Frank's 4th wife and philanthropist, dies

LOS ANGELES - Barbara Sinatra, the fourth wife of legendary singer Frank Sinatra and a prominent children's advocate and philanthropist who raised millions of dollars to help abused children, died Tuesday at 90.Sinatra died of natural causes at her Rancho Mirage, California, home surrounded by family and friends, said John Thoresen, director of the Barbara Sinatra Children's Center.With her husband's help, Barbara Sinatra founded a nonprofit center in 1986 to provide therapy and other support to