When a man's body was found in Laurel Canyon after a fire, it touched off a mystery: who was William de Rothschild? He had told people he was a member of the famed finance family, but my reporting refuted that. Now the coroner has details on his odd death: https://www.latimes.com/california/story/2025-02-04/corner-report-william-de-rothschild-laurel-canyon-fire