Walker cooperated somewhat with authorities, enough to form a plea bargain that would reduce the sentence for his son. He agreed to submit to an unchallenged conviction and life sentence, to provide a full disclosure of the details of his spying, and to give testimony against Whitworth in exchange for a pledge from the prosecutors that his son would receive a sentence of imprisonment for not more than 25 years.[2][17] All the members of the spy ring besides Michael Walker received life sentences for their role in the espionage. Whitworth was sentenced to 365 years in prison and fined $410,000 for his involvement. Whitworth is now incarcerated at the United States Penitentiary, Atwater, a high-security federal prison in California.
Walker's son, Michael, who had a relatively minor role in the ring, and who agreed to testify in exchange for a reduced sentence, was released from prison on parole in February 2000.[1]
Walker is now incarcerated at the Butner Federal Correctional Complex (low security portion) in Butner, North Carolina.[18] He is said to suffer from diabetes and stage IV throat cancer.[1][19] He is scheduled for release on May 20, 2015,[20] at which point he will have served 30 years in prison.