South Carolina is preparing this week to execute a man by firing squad, a capital punishment method that hasn’t been used in the U.S. in nearly 15 years.

The state has never used that method to execute a prisoner. The last time an inmate was killed by a firing squad was in 2010 in Utah.

Only three inmates in the U.S. have been executed by firing squad since 1976, with the last execution in 2010.

Brad Sigmon, set for execution by firing squad on March 7, seeks a delay, citing concerns over South Carolina’s lethal injection process. If carried out, it would be the first U.S. firing squad execution since 2010.

COLUMBIA, S.C. (AP) — A South Carolina man who is scheduled to die next week by firing squad is again asking that his execution be postponed and prison officials release more information about the state’s lethal injection drug and procedures.

A South Carolina inmate on death row has chosen to be executed by a firing squad, according to multiple reports. If chosen, he will be the first person to die by a firing squad in the United States in 15 years.

Opinion editor Matthew T. Hall explores the history of firing squads in the U.S. ahead of South Carolina’s planned execution of Brad Sigmon by bullet March 7.

Brad Sigmon was convicted of beating two people to death with a baseball bat, and he’s scheduled to be executed in weeks. But instead of lethal injection, Sigmon chose to be executed by firing squad.