The Supreme Court on Friday denied an emergency appeal to halt the execution of a South Carolinian man on death row, who had opted to be executed by a firing squad.

Brad Sigmon, who was convicted of killing his ex-girlfriend's parents in 2002, is now expected to be executed at 6 p.m. Eastern, at the Broad River Correctional Institution in Columbia, South Carolina.

If successful, he would be the first South Carolinian on death row to be executed by firing squad, and first death row inmate to choose that method in the U.S. since 2010.

The justices rejected his emergency motion in a brief order without no noted dissents.

Sigmon chose the firing squad as his method of execution last month, instead of lethal injection or electric chair. His attorney Gerald King claimed the decision was an "impossible" one because of tough downsides in all options.

King said if his client chose lethal injection then he could face the same fate as the three South Carolinian men who were executed before Sigmon, in which dying took 20 minutes. If he chose the chair, he would be "burned alive."

"The only choice that remained is the firing squad," King said. "Brad has no illusions about what being shot will do to his body. He does not wish to inflict that pain on his family, the witnesses or the execution team."

The Supreme Court's order marks the 10th emergency appeal that it has rejected regarding executions since the start of its term in October, per The Hill.

Misty Severi is a news reporter for Just The News. You can follow her on X for more coverage.