Brad Sigmon, a South Carolina man convicted in a 2002 double murder, is scheduled to be executed by firing squad on Friday, making him the oldest inmate executed by the state. Sigmon's lawyer has requested clemency, arguing that Sigmon has transformed his life in prison and poses no further danger. Sigmon chose the firing squad method due to concerns about previous lethal injection executions in South Carolina. The state has released details about how the firing squad execution will be carried out, with three Department of Corrections employees firing rifles loaded with live ammunition from behind a wall. Witnesses, including media, will be permitted in a separate room during the execution.