Brad Sigmon, convicted of a double murder in 2002, is set to be executed by firing squad in South Carolina, marking the state's first use of this method and the first such execution in the U.S. since 2010. Sigmon, who killed his ex-girlfriend's parents and kidnapped her, chose the firing squad as his preferred method of execution, while awaiting potential intervention from the governor or the U.S. Supreme Court. His lawyer has appealed for clemency, citing Sigmon's transformation and renewed Christian faith during his imprisonment, leaving the final decision to the authorities as the execution time nears.