United States v. Grayson

Grayson (defendant) escaped from a federal prison camp and was indicted for prison escape. He testified in his own defense at trial, but several parts of his testimony were contradicted by cross-examination and other witnesses, and the jury found him guilty. At sentencing, the judge stated he believed Grayson had completely fabricated his trial testimony and would factor that belief into the sentence. Grayson appealed, arguing sentence enhancement based on perceived perjury violated due process by punishing an uncharged, unproven crime.