CONCORD, N.H. — A New Hampshire prep school graduate convicted of sexually assaulting a 15-year-old classmate has begun serving the remaining 10 months of his jail sentence.

Twenty-three-year-old Owen Labrie reported to the Merrimack County jail on Wednesday morning, a little over a week after a judge refused to shorten his sentence.

Owen Labrie Merrimack County Department of Corrections

He also was convicted of using a computer to lure an underage student for sex, requiring him to register as a sex offender.

Labrie had been free pending appeals, other than the two months he served for curfew violations in 2016.