CHICAGO – Less than 24 hours after screaming out his innocence in court, Drew Peterson was transferred to an Illinois prison to begin serving his 38-year sentence for the murder of this third wife.

The former suburban Chicago police officer, whose case attracted widespread media attention and inspired a TV movie, entered the maximum-security Stateville prison outside Joliet early Friday. Prison officials said he could eventually be moved after an evaluation period.

A judge sentenced him Thursday for the 2004 drowning death of his fourth wife, Kathleen Savio. He's also a suspect in the disappearance of his fourth wife, Stacy Peterson. Savio's death was originally ruled an accident, but it was re-examined after Stacey Peterson vanished in 2007 and eventually ruled a homicide.