A memo says Illinois prison officials wanted Drew Peterson transferred to a federal prison because the former suburban police officer convicted of killing his third wife and plotting to kill the prosecutor posed a danger to the prison.
The Chicago Sun-Times reports it obtained a memo in which an official said Peterson was a "threat to safety and security of the department." The official recommended monitoring Peterson's mail and phone calls. Peterson was transferred last month from the Menard Correctional Center in Illinois to a federal prison in Terre Haute, Indiana.
Peterson was serving a 38-year prison sentence in the 2004 slaying of Kathleen Savio when he was convicted last year of trying to hire someone to kill the prosecutor. He's a suspect - though not charged - in the 2007 disappearance of his fourth wife, Stacy Peterson.