The US Marshalls have confirmed with Atlanta media today that convicted sex offender Richard Harden is a person of interest in the disappearance of Heather McDonald, who was last seen in Cartersville on September 18th. McDonald’s husband Stefan, however, knows Harden and does not believe he had anything to do with his wife’s disappearance.

Harden was arrested in Carroll County last month for violation of the sex offender registry.

The FBI doubled the reward for information leading to McDonald’s discovery to $20,000 on Tuesday. The Cartersville Police Department phone number is 770-382-2526.