Christopher Thornton was convicted of obstructing a game warden after refusing to lower his car stereo and driving away while the warden was briefly dragged. The Georgia Supreme Court affirmed. The court held that the evidence was sufficient to show that the warden was acting lawfully and that Thornton knowingly obstructed the warden’s official duties. The court rejected Thornton’s challenge to the governing obstruction statute and concluded that a rational jury could find the required conduct beyond a reasonable doubt. The judgment therefore remained in place.