Steve Bing took his own life, a coroner in Los Angeles has said.The 55-year-old, who shared a son with actress Elizabeth Hurley, was found dead in Century City on Monday.On its website, the Los Angeles County Medical Examiner-Coroner's Office listed Bing's cause of death as "multiple blunt trauma" and said the manner was suicide.The case is now closed, the coroner added.Former US president Bill Clinton among those to pay tribute as news of Bing’s death emerged.Bing was described as a "sweet,