He was arrested last month at the nursing home where he had been living in Millcreek, just south of Salt Lake City, on a fugitive warrant for suspicion of second-degree murder.
A 66-year-old suspect in the 1977 slaying of a Hawaii teenager agreed on Wednesday to be extradited from Utah to face a murder charge.
Gideon Castro waived the right to challenge his extradition during a hearing before a judge in Salt Lake City.
She was lying on her back, partially clothed with an orange cloth wrapped tightly around her neck and had been sexually assaulted and strangled, police said.
On March 21, 1977, shortly after 7:30 a.m., Honolulu police found the body of 16-year-old Dawn Momohara on the second floor of a school building.