Published: Jul 30, 2012 12:44 PM EDT
Updated: Jul 30, 2012 1:17 PM EDT

LEE COUNTY, Fla.- The couple accused of using a 4-year-old girl to create child porn plead not guilty Monday morning in a Lee County court room.

The couple was not in court Monday morning. They plead not guilty via their lawyer to all of the charges. They each face a litany of felonies including sexual assault on a child under the age of 12, cruelty toward a child and possessing obscene material.

Investigators say Alan Johnson, a registered sex offender, and his girlfriend Jennifer Sparks molested a 4-year-old  and used her to create child porn. The two allegedly recorded the sex acts with the girl on their cell phone.

This case gained national attention when the couple left their phone behind at Walmart and the images were discovered. Another shopper turned the phone over to police as soon after his fiance found it inside a shopping cart at the store in North Fort Myers.

Both Alan Johnson and Jennifer Sparks will be back in court for a case management hearing on September 27th.

Trust WINK News to continue to follow this case as it unfolds and bring you the latest.