South Carolina executed a convicted murderer by firing squad on Friday, the first use of the method in the United States in 15 years.

Brad Sigmon, who admitted to killing his ex-girlfriend's parents, said he chose to die by bullets because he considered the other choices offered by the state to be worse.

South Carolina has killed death row inmate Brad Sigmon, 67, in the first firing squad execution in the U.S. in 15 years. According to the Death Penalty Information Center, Sigmon’s death marks the fourth firing squad execution in U.