A Bangor man who admitted to sexually assaulting a 9-year-old neighbor in 2016 and showing her child pornograpny was sentenced Tuesday at the Penobscot Judicial Center to 10 years in prison. David Jack, 44, pleaded guilty earlier this year to unlawful sexual contact, a Class A crime, and indecent conduct, a Class E crime. Under his plea agreement with the Penobscot County District Attorney’s Office, Jack will serve the sentence on the state charges at the same time he is serving a 10-year sentence in federal prison for possession of child pornography. Jack pleaded guilty to the federal charge in January on the Friday before his jury trial was to begin.