Devin McEwin, 41, of Avery, pleaded guilty in federal court to bribery at the Red River Army Depot. McEwin was at the depot working in purchasing electrical supplies. The state accused him of taking a $21,000 bond from Jeffrey Harrison of Texarkana. Harrison and Justin Bishop of Clarksville were vendors at the depot and previously pleaded guilty. The only defendant not to plead guilty is 69-year-old Jimmy Scarborough. Authorities are accusing him of conspiracy to defraud the United States government and 36 counts of bribery.