By Joe Mandak
Pittsburgh, Pennsylvania (AP)

A former Pennsylvania man who pretended to be a Cherokee chief and billionaire oil tycoon pleaded guilty in federal court to a multimillion-dollar wire fraud conspiracy on Wednesday.

Federal prosecutors said Robert Eugene Cheney, 79, who now lives in Las Vegas, and another man who remains charged in the scheme stole at least $2.5 million from at least 10 investors in various states and Canada who believed they were investing in oil exploration ventures that Cheney claimed to control.