COWETA COUNTY, GA — A man is behind bars in Coweta County in a horrific child porn case.

A tip from the National Center for Missing and Exploited Children led to an investigation by the Coweta County Sheriff’s Office.

Authorities later uncovered 20,000 images of child sexual abuse material.

The investigation led to the arrest of David Thomas Stevens.

Investigators say some of the material found includes children believed to be 12 months old or younger.

This is a developing story. Stay with WSB Radio News for updates.