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.

An inmate on South Carolina's death row has chosen to die on March 7 by firing squad, his lawyer said Friday. Brad Sigmon, 67, who was convicted in 2002 of killing his ex-girlfriend’s parents, would be the first condemned prisoner to be executed by that method in South Carolina and the first inmate to die by firing squad in the U.

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.