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.

A South Carolina death row inmate has chosen to be executed by a firing squad next month rather than by lethal injection or the electric chair.

Brad Sigmon, who used a baseball bat to kill his ex-girlfriend's parents at their home in Greenville County, California, didn't pick the electric chair because it would "burn and cook him alive"