Stephen R. Wigginton, United States Attorney for the Southern District of Illinois, announced that 35-year old Clarence Walker of DuQuoin, Illinois, was sentenced in federal court for child pornography offenses.  Walker had earlier pled guilty on August 8, 2013.  The Court sentenced him to 11 years in prison, a $500 fine and 10 years of supervised release following discharge from prison.  The evidence at sentencing established that Walker had previously been convicted in Illinois for sex offenses involving children.  After his release from prison for that offense, authorities discovered that he had been downloading child pornography from his computer at his DuQuoin, Illinois residence.