Two Class X felonies of predatory criminal sexual assault of a child have been filed against a Viola man. 42 year old David Lee Richardson was arrested on a warrant last week. The charges involve a child under the age of 13. Richardson waived his preliminary hearing Tuesday morning in Mercer County Circuit Court and pleaded not guilty to the charges. A pre-trial conference has been scheduled for Feb. 2. He remains in custody on $200,000 bond.