Even though at 89 you would expect natural causes, they think he may have well been murdered. Notorious Boston gangster James "Whitey" Bulger was found dead at a federal prison in West Virginia Tuesday — on the morning after he arrived — and the FBI has launched an investigation, federal officials said. Bulger, 89, was found unresponsive about 8:20 a.m. at the high-security penitentiary USP Hazelton in West Virginia, according to a Justice Department statement. "Life-saving measures were initiated immediately by responding staff," the statement said. But he was subsequently pronounced dead by the Preston County Medical Examiner, the Justice Department said. No other staff or inmates were injured, officials said. Bulger had arrived at the West Virginia prison on Monday.