**A US white supremacist accused of murdering a guard at Washington DC’s Holocaust Memorial museum has died in a prison hospital, officials say.**They say James von Brunn, aged 89, died in Butner, North Carolina, where he had been awaiting trial.
Mr von Brunn had been charged with first-degree murder, killing in a federal building and bias-motivated crime over the 10 June attack.
He was shot in the face during the incident.
Mr von Brunn died shortly before 1300 local time (1700 GMT), Butner prison spokeswoman Denise Simmons was quoted as saying by the Associated Press.
Last September, Mr von Brunn, a Holocaust-denier who ran a racist, anti-Semitic website, asked for a “fair and speedy trial” when he appeared in court.