On February 16, 1929, four months after Ned Doheny, his wife Lucy and their five children moved into Greystone, Ned died in his bedroom in a murder-suicide with his secretary, Hugh Plunket. The official story indicated Plunket murdered Ned either because of a "nervous disorder" or inflamed with anger over not receiving a raise. Others point out that Ned's gun was the murder weapon and that Ned was not buried in a Catholic cemetery with the rest of his family, indicating that he had committed suicide. Both men were involved in the trial of Ned's father (Edward L. Doheny) in the Teapot Dome scandal.
Both Upton Sinclair's book OIL (1927) and the recent film THERE WILL BE BLOOD (2007) are loosely based on Edward L. Doheny. The final sequence in the film was filmed at Greystone Mansion aka the Doheny Mansion.