BELLEVILLE — A former Air Force lieutenant colonel and Boy Scout volunteer will spend at least 21 years in state prison as a result of his guilty pleas to criminal sexual assault and abuse involving children in his family.
Jon L. Demers, 55, who was previously sentenced to six years in state prison following his March trial for sexual abuse of underage male members of his family, will serve both sentences concurrently.
On Monday, he was sentenced to 25 years as a result of his guilty plea to other charges including predatory criminal sexual assault of a child, a Class X felony, which is the state's most severe.
Demers was suspended from his civilian job at Scott Air Force Base, where he previously served as an officer. He was removed in 2011 as a merit badge counselor for Boy Scout Troop 520 in Belleville after the criminal charges surfaced.
The case was prosecuted by Assistant State's Attorney Laura Reppert of the Violent Crime Unit.
"We should all be proud of the brave victims of Jon Demers who rose above his awful acts and showed great courage by facing him down in court and bringing him to justice," Kelly said of the trial.
As part of a plea bargain, Demers agreed in writing not to appeal his case or ask a judge for a lesser sentence.
He is currently in the Menard Correctional Center in Chester.
Contact reporter George Pawlaczyk at firstname.lastname@example.org or 239-2625.