A 73-year-old suspected of a 1970 Milwaukee slaying has been ordered to stand trial to determine whether he's sexually violent.
Robert Hill recently finished serving a 10-year sentence for sexually assaulting four children under the age of 10 between 1995 and 2002.
But police said Hill confessed to the killing of 9-year-old Donna Willing in February 1970 but later recanted. They said he knew details that hadn't been released.
Biological evidence was destroyed or lost in the 1990s that could help convict Hill, so prosecutors are trying to use the state's sex offender law to keep him in custody. A judge determined Monday there's enough evidence to move to trial. Prosecutors will have to prove he's a sexually violent person.
Hill appeared by video Monday from a supervised facility.