sentences:  At the same time, the company came under investigation by the Texas Attorney General in October 2006 for alleged violations of that state's Deceptive Trade Practices Act.In July 2006, Texas Attorney General Greg Abbott formally charged Mannatech, MannaRelief, Sam Caster, and Reginald McDaniel, the company's medical director, with operating an illegal marketing scheme in violation of state law.A "20/20" undercover investigation that aired June 1, 2007 on ABC Television showed Mannatech's sales associates teaching sales recruits how to target Mannatech products to people with specific illnesses in a manner that purportedly does not violate U.S. federal law, including U.S. Food and Drug Administration regulations, by avoiding direct claims that the products cure any particular diseases.