(Elk River, MN)  --  A Becker man has drawn a five-year prison sentence after pleading guilty to child pornography charges.  Twenty-nine-year-old Gregory Shartle (SHART'-uhl) will spend the next 60 months in the Saint Cloud prison.  Investigators found numerous child porn photos on Shartle's computers and server during a search of his residence in May.  He pleaded guilty to five counts of dissemination and possession of pornographic work in October.