Sam's Club, Tyson Employees Charged With Taking Kickbacks by Gwen Moritz Posted 3/9/2012 03:21 pm Updated 4 years ago Not guilty pleas have been entered by all four men, Mark Hoffman and David Workman in the Sam's Club case and Roger D. Turney and Bobby D. Griffith in the Tyson case. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 20 days. Purchase Now Already have archive access? Login to view this article.