Mississippi death row inmate Howard Dean Goodin will argue Wednesday before the state's highest court that he shouldn't be executed because he is mentally disabled.
Goodin's claim of mental disability comes in a post-conviction petition, in which an inmate argues he has found new evidence, or a possible constitutional issue, that could persuade a court to order a new trial.
His petition was dismissed in 2007 by Circuit Judge Marcus Gordon.
Goodin, now 55, was convicted of capital murder in a 1999 robbery and murder of Willis Rigdon of Union. A Newton County judge found Goodin competent in 2004.