A Hellertown man charged in September with raping a Lower Saucon Township boy over a period of five years pleaded guilty to sexual assault charges in Northampton County Court Friday, according to a story published by the Morning Call.

Twenty-two year-old Vincent Arnold, whose address was once listed in Bethlehem, pleaded guilty to charges of indecent assault, statutory sexual assault and aggravated indecent assault in Northampton County Court, and will have to register as a sex offender for the rest of his life, according to the article.

Arnold assaulted the boy from 2006--when the boy was three--until 2011, and also threatened him with a knife, according to police and court records cited in the story.

Arnold's sentencing on the charges was scheduled for July 6 by Northampton County Court Judge Michael Koury Jr.