One of the five Niles teenagers allegedly involved in a sex video extortion scandal had his sentencing adjourned Monday.

Murphy has pleaded guilty to third-degree criminal sexual conduct. As a part of his plea agreement, he had his original charge of first-degree criminal sexual conduct dropped.

His sentencing was moved Monday to Dec. 19, so he can testify against co-defendant Martell Miller at his trial Dec.13 — one of the conditions of Murphy’s plea deal.

Murphy, Miller and their codefendants are accused of secretly videotaping a then 17-year-old girl having sex with one of them and threatening to post the video on Facebook unless she performed sex acts on them.

Miller’s trial is slated for Dec. 13 at South Berrien County Trial Court.