Terrill Marion Crane pleaded guilty Jan. 22 to producing child pornography.
Federal prosecutors say Crane started making photographs of sexual encounters with young girls in 1999. In 2003, his wife found and burned some of the photos.
In 2007, Atlanta officers advised the FBI of photos of 11 mostly middle school-age girls. Some were identical to pictures initially provided to Alanta police in 2000.
Allegations of a coverup led to an internal investigation and the demotion of a police official who was later reinstated by the city's Civil Service Board.