A father and son involved in the development of the Arizona Athletic Grounds have pleaded guilty to multiple federal charges, including securities fraud and aggravated identity theft, after defrauding municipal bondholders of more than $280 million. The scheme involved using forged documents and false claims to secure millions in funding for the sports complex project. Separately, a South Carolina man, formerly of Annapolis, has been charged in Maryland for multimillion-dollar Medicare fraud and Ponzi schemes, including defrauding customers of his private charter jet company. The man allegedly bilked $15 million each from Medicare and the jet company. Additionally, a former nurse in Arizona pleaded guilty to a $54 million Medicaid fraud, and two leaders of a $12 million Medicaid fraud scheme in Pennsylvania have been sentenced to state prison. In Texas, Charles Carrier agreed to plead guilty to felony wire fraud related to defrauding investors of millions. These cases highlight ongoing federal efforts to combat large-scale fraud across multiple states.