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FORT WORTH Three people have now been formally charged in the TCU drug investigation.

The Tarrant County District Attorney's office has charged Katherine Petrie of Azle with delivery of marijuana less than 5 pounds. She was a part of the original investigation.

William Hoffman of Dallas was charged with delivering Xanax; Jordan Sherman of Azle is facing a marijuana charge.

Last month, more than a dozen students including Horned Frog football players were arrested after a six-month sting operation.

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