A York County judge has sentenced a former volunteer at a Red Lion youth center to prison in a sexual abuse case.

Ian M. Ryan, 30, of the 500 block of South Main Street in Red Lion pleaded guilty in April to sexual assault by volunteer of a nonprofit, unlawful contact with a minor, indecent assault of a person less than 16 years old and photographing, videotaping, depicting on computer or filming sexual acts involving a child.