FREMONT, Neb. (AP) — A Nebraska jury has rejected a man’s claim that a medical condition would have made it impossible for him to rape a sleeping teenager.

Joshua Keadle was found guilty Thursday of first-degree sexual assault of a minor. The 30-year-old who has been linked to the 2010 disappearance of a Peru State College student had claimed that erectile dysfunction would have kept him from raping the 15-year-old in Fremont in 2008.

The sexual assault happened in December 2008 at a residence hall at what was then Midland Lutheran College. Keadle will face up to 50 years in prison when he is sentenced.

Keadle remains a person of interest in the December 2010 disappearance of a Peru State College student, Tyler Thomas. No charges have been filed in that case.