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.

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.

COLUMBIA, S.C. (AP) — Condemned South Carolina inmate Brad Sigmon has chosen to die next month by a firing squad. He would be the first U.S. inmate shot to death in an execution in 15 years.