A lawyer for John Dee Carruth, CEO for the $613 million, 60,000-member, Tuscaloosa, Ala.-based Alabama One Credit Union, has threatened to sue one of the credit union's members if he does not stop allegedly defaming Carruth on Facebook.

The Birmingham, Ala.-based lawyer Barry Frederick wrote a letter to Kenneth Walters, a retired worker from the BF Goodrich tire manufacturing plant in Tuscaloosa, demanding the action on behalf of Carruth. Walters also served as a former union leader at the plant and has been a vocal critic of Carruth and other Alabama One executives.

"On behalf of an honest man and my client, John Dee Carruth … I hereby demand that you make a public, full and unqualified retraction that contrary to accusations, representations, and statements posted by you, or posted by others, on your Facebook page," Frederick wrote in a June 16, 2015, letter. "John Dee Carruth is not a crook, is not crooked and has not committed criminal conduct."