OKLAHOMA CITY, OK -- The FBI is looking for a child predator.
The unknown man is identified as John Doe 28.
He's wanted on charges of sexual exploitation of a child.
The FBI has been investigating this case since November 2012, when photos of the suspect engaging in sexual explicit activities with a child were first discovered.
The suspect is believed to be a white male, possibly in his 30s or 40s, with a receding hairline and wearing wire-framed glasses.
Anyone with information should contact the FBI.