Condemned South Carolina inmate Brad Sigmon has chosen to die next month by a firing squad, a method of execution that has not been used in the U.S. in 15 years.

During the Civil War, both sides used firing squads to kill deserting soldiers. Today, people on death row can choose to die that way in some states.

A South Carolina death row inmate has chosen to be executed by firing squad, marking what could be the first execution by gunfire in the United States in 15 years. Brad Sigmon, 67, is scheduled to be put to death on 7 March as part of South Carolina’s recent push to resume executions after a 13-year pause.