Mississippi is set to carry out its 20th execution by lethal injection as Richard Jordan, who's sat on death row for 48 years, faces death this week.

Three volunteer South Carolina prison employees will be the firing squad used to execute condemned killer Brad Sigmon on Friday.

Mississippi is set to carry out its 20th execution by lethal injection as Richard Jordan, who's sat on death row for 48 years, faces death this week.

Sigmon's execution marked the first time in South Carolina's history that a death row inmate was killed by firing squad. The last U.S. execution by firing squad occurred in Utah in 2010.

Mississippi allows execution by firing squad, but has never used this method. Richard Jordan, Mississippi's longest-serving death row inmate, is scheduled to be executed by lethal injection ...

Mississippi allows execution by firing squad, but has never used this method. Richard Jordan, Mississippi's longest-serving death row inmate, is scheduled to be executed by lethal injection ...