A parole board sometime in the next century will decide if an Arizona prison inmate has to spend another 15 years in a Utah prison for the 1985 kidnapping and sexual assault of a West Bountiful girl.

William E. Denning, 32, pleaded no contest in March to one count of aggravated kidnapping in the Aug. 5, 1985, incident. He was charged originally with aggravated kidnapping and sodomy, both first-degree felonies that carry prison terms of five years to life and minimum mandatory terms of five, 10, or 15 years.In Denning's sentencing Tuesday, defense attorney Steve Vanderlinden told Judge Douglas L Cornaby that Denning has 27 years left to run on a 30-year prison term in Arizona, a term he will serve without parole. And, Denning faces a five-year-to-life term after that in Nevada, with no parole review scheduled for at least five years, Vanderlinden said.

Vanderlinden asked if Denning's 15-year minimum mandatory sentence in Utah could run concurrently with the Arizona term.

Cornaby said he is required under state law to impose the mandatory term but worded his sentencing so the state parole board can review the sentence and make its own determination when Denning's Utah prison term is due to begin.

Vanderlinden told the judge he calculates, between the Arizona and Nevada terms, that will occur sometime in the year 2030.

According to court records, Denning kidnapped the then-10-year-old girl from West Bountiful, took her to the gun club in the foothills above North Salt Lake, and assaulted her.

He is serving the prison terms in Arizona and Nevada for similar crimes. Denning admitted the Utah assault to Nevada police last summer and the girl then picked his picture out of a photo lineup, identifying Denning as her assailant, according to court records.

As part of his plea negotiation with the Davis County attorney's office, a third-degree felony charge of damaging a jail was dismissed.