Expert to study mental disabilty claim of death row inmate

Pastor DiArron M. speaks during a vigil for Pervis Payne outside of the Shelby County Criminal Justice Center on Friday, June 4, 2021 in Memphis. A hearing is scheduled Friday in the case of Payne, a Tennessee death row inmate who has long maintained his innocence and whose lawyers filed a petition saying he is intellectually disabled and should not be executed. (Patrick Lantrip/Daily Memphian via AP)

FILE - This file photo provided by Tennessee Department of Correction shows Tennessee death row inmate Pervis Payne. A Tennessee judge ruled Friday, June 4, 2021, that an expert hired by a state prosecutors’ office can conduct a mental evaluation of Payne, who claims he is intellectually disabled and should not be executed. (Tennessee Department of Correction via AP, File)

Attorney Kelley Henry, center, talks to supporters of her client, Tennessee death row inmate Pervis Payne, on Friday, June 4, 2021, in Memphis, Tenn. A judge ruled Friday that an expert hired by a state prosecutors' office can conduct a mental evaluation of Payne, who claims he is intellectually disabled and should not be executed. (AP Photo/Adrian Sainz)

Rolanda Holman attends to her father, Pastor Carl Payne, during a vigil for Pervis Payne outside of the Shelby County Criminal Justice Center on Friday, June 4, 2021 in Memphis. A hearing is scheduled Friday in the case of Payne, a Tennessee death row inmate who has long maintained his innocence and whose lawyers filed a petition saying he is intellectually disabled and should not be executed. (Patrick Lantrip/Daily Memphian via AP)

Pastor and University of Memphis professor Andre E. Johnson leads a prayer vigil for Pervis Payne outside of the Shelby County Criminal Justice Center on Friday, June 4, 2021 in Memphis. A hearing is scheduled Friday in the case of Payne, a Tennessee death row inmate who has long maintained his innocence and whose lawyers filed a petition saying he is intellectually disabled and should not be executed. (Patrick Lantrip/Daily Memphian via AP)

Pastor and University of Memphis professor Andre E. Johnson leads a prayer vigil for Pervis Payne outside of the Shelby County Criminal Justice Center on Friday, June 4, 2021 in Memphis. A hearing is scheduled Friday in the case of Payne, a Tennessee death row inmate who has long maintained his innocence and whose lawyers filed a petition saying he is intellectually disabled and should not be executed. (Patrick Lantrip/Daily Memphian via AP)

Rolanda Holman, center right, speaks during a prayer vigil for her brother, Tennessee death row inmate Pervis Payne, on Friday, June 4, 2021, in Memphis, Tenn. A judge ruled Friday that an expert hired by a state prosecutors' office can conduct a mental evaluation of Payne, who claims he is intellectually disabled and should not be executed. (AP Photo/Adrian Sainz)