ALLEGAN, Mich. (AP) -

A killer in custody for more than 40 years under an old law is asking a western Michigan judge to give him a chance at freedom.

Theodore Williams, 75, is at a state psychiatric hospital. He's being held under the Criminal Sexual Psychopath Act that was repealed in the 1970s. Williams can ask an Allegan County judge to hold a trial to determine if he's no longer a threat to society.

In 1967, Williams raped and killed a 7-year-old Grand Rapids girl whose body was found in Allegan County. Police say Williams also confessed to killing a 13-year-old girl in another county in 1966.

His attorney, Robert Champion, tells The Grand Rapids Press that Williams has accepted responsibility for his actions and isn't a threat to the public.

Allegan County Prosecutor Fred Anderson is opposing Williams' release.