Died in prison
John Anthony Walker
John Walker Jr. was a former U.S. Navy officer who died at age 77 at the federal medical center in Butner, North Carolina, on August 28, 2014. He had been held at the federal prison hospital there and had reportedly been treated for throat cancer. The Federal Bureau of Prisons confirmed his death, and a spokesman said prison officials did not release a cause, while the state medical examiner's office had no immediate information. His brother had died at the same facility earlier that year. His daughter, Cynthia Walker Ober, posted a farewell on Facebook: "Good bye Dad... Rest peacefully, you are in Gods hands now."
Cause of death, as reported: Cause not yet determined