Guam - Jimmy Hsieh pleaded not guilty to additional criminal charges that were handed down against him in a superceding indictment. Hsieh, William Perez, Wai Kam Ho and Jennie Pau are charged with illegal gambling, conspiracy, money laundering, structuring and criminal forfeiture. They're accused of having an illegal gambling operation at the MGM Spa in Tamuning.

Their trial is scheduled for August 21.