Steven Lawayne Nelson was condemned for the 2011 killing of the Rev. Clint Dobson at a Baptist church in Arlington. Dobson’s secretary was severely beaten and left for dead but survived the attack.

Texas is set to execute Steven Nelson by lethal injection on Wednesday for the 2011 murder of beloved pastor Clint Dobson, who was just beginning his ministerial career.

Texas death row inmate Steven Lawayne Nelson poses for a photo in a visiting cage at the Texas Department of Criminal Justice Polunsky Unit outside Livingston, Texas, on Dec. 5, 2012.

A Texas man set to be executed in the killing of a beloved pastor is making a last plea for mercy before he's taken to the death chamber on Wednesday, saying in a last interview that he's innocent.

A Texas man set to be executed in the killing of a beloved pastor is making a last plea for mercy before he's taken to the death chamber on Wednesday, saying in a last interview that he's innocent.

Steven Lawayne Nelson was condemned for the 2011 killing of the Rev. Clint Dobson at a Baptist church in Arlington. Dobson’s secretary was severely beaten and left for dead but survived the attack.

Steven Lawayne Nelson was condemned for the 2011 killing of the Rev. Clint Dobson at a Baptist church in Arlington. Dobson’s secretary was severely beaten and left for dead but survived the attack.

Texas is set to execute Steven Nelson by lethal injection on Wednesday for the 2011 murder of a beloved pastor who was just beginning his ministerial career.. Nelson, 37, was convicted for the ...

Steven Lawayne Nelson was condemned for the 2011 killing of the Rev. Clint Dobson at a Baptist church in Arlington. Dobson’s secretary was severely beaten and left for dead but survived the attack.

Steven Lawayne Nelson was condemned for the 2011 killing of the Rev. Clint Dobson at a Baptist church in Arlington. Dobson’s secretary was severely beaten and left for dead but survived the attack.

Steven Lawayne Nelson was condemned for the 2011 killing of the Rev. Clint Dobson at a Baptist church in Arlington. Dobson’s secretary was severely beaten and left for dead but survived the attack.