The on-again, off-again girlfriend of US actor Jim Carrey has died at her California home of an apparent suicide, police said Tuesday. "Cathriona White, 30, was pronounced dead by paramedics Monday evening," Fred Corral, a spokesman at the Los Angeles County coroner's office, told AFP. He said White's death was being treated as a suicide. Local news reports said the couple, who have been dating on and off since 2012, broke up last Thursday.AFP