The 89-year-old man accused of a deadly shooting at a Washington museum last summer has died in a prison hospital. At Butner federal prison in North Carolina, spokeswoman Denise Simmons confirmed that James von Brunn died Wednesday afternoon. Von Brunn had been awaiting trial for the killing of a security guard at the U.S. Holocaust Memorial Museum on June 10. Von Brunn had been wounded by return fire but survived.