A Maine man found guilty of luring a 15-year-old girl to her death with a fake Facebook profile has lost his appeal to the Maine Supreme Judicial Court.

The court unanimously rejected his claim that the verdict should be overturned because of non-expert testimony about handwriting on a note admitting to a crime and because of comments made by the prosecutor in the closing arguments.

Twenty-two-year-old Kyle Dube of Orono was sentenced to 60 years last May in the 2013 killing of Nichole Cable.

Prosecutors say Dube abducted Nichole to have sex with her. Police say Dube told others he’d intended to kidnap her and become a hero by rescuing her in May 2013.

Her body was found after an eight-day search. She died from asphyxiation.