COLUMBIA, S.C.
Moore has spent more than two decades on death row after being convicted of the 1999 killing of convenience store clerk James Mahoney in Spartanburg.
Only three executions in the United States have been carried out by firing squad since 1976, according to the Washington-based nonprofit Death Penalty Information Center.
Moore’s attorneys have asked the state Supreme Court to delay his death while another court determines if either available method is cruel and unusual punishment.
South Carolina’s corrections agency said last month that it finished developing protocols for firing squad executions and completed $53,600 in renovations on the death chamber in Columbia, installing a metal chair with restraints that faces a wall with a rectangular opening 15 feet away.
Prosecutors said Moore left a trail of blood through the store as he looked for cash, stepping twice over Mahoney.
Moore’s supporters have argued that his crime doesn’t rise to the level of a death penalty offense.