Jefferey Wood was scheduled to be put to death by lethal injection in Huntsville, Texas, at 6 p.m., but U.S. District Judge Orlando Garcia ordered the delay to allow the psychiatric examination, the Houston Chronicle reported.

Wood was being returned to his death row cell, the newspaper said. His attorney said he would report to the court on the psychiatric evaluation in 2009.

If Wood is found incompetent, his execution could be postponed indefinitely, the newspaper said.

Wood was arrested with David Reneau the day after convenience story employee Kris Lee Keeran was shot and killed in an armed robbery.

Defense attorneys argued that Wood is not competent to be executed and death penalty opponents have argued that it was Reneau who killed Keeran while Wood drove the getaway car. Texas law holds all parties to a crime equally culpable, the Chronicle said.

Reneau was executed in 2002.