Green's parents awoke Wednesday morning and noticed their daughter was not in her bedroom; she had left for a walk with Howard hours earlier, police said. The parents did spot Howard in their backyard, but they were unable to find Green after a search of the area.
Police responded about 4:45 a.m. to a 911 call from Green's father and about 6:30 a.m. spotted the body lying in a field about a half-mile south on Hawley near Glenwood.
Howard was arrested shortly after. He gave police several admissions, but hasn't given a formal confession, said Sgt. Steve Borisch.
The arrignment was held in 18th District Court on Friday, as was Green's funeral. Howard's preliminary hearing will be on May 22.