By Graham Lee Brewer Staff Writer gbrewer@oklahoman.comAttorneys for a death row inmate are asking an Oklahoma court to reevaluate him and perform additional brain scans in order to show he is not mentally competent for execution. In a Tuesday filing in the Northern District of Oklahoma federal court, attorneys for Benjamin Robert Cole, 50, contended their client has schizophrenia and that a 2004 MRI shows he has brain lesions.