EDWARDSVILLE, Ill. (AP) — An 80-year prison sentence has been handed a southern Illinois man who pleaded guilty to child pornography and predatory criminal sexual assault. David J. Von Bergen of Godfrey was arrested in September 2014 when police served a search warrant on his home. Police say Von Bergen was downloading child pornography on his computer at the time of his arrest. A search of the computer turned up videos made by the 36-year-old Von Bergen depicting sexual acts between him and two sisters, ages 7 and 8.