Idaho lawmakers have introduced a bill to make a firing squad the primary method of execution in the state. Under Idaho law, lethal injection is the primary method, but executions by firing squad are allowed if executioners can't obtain the drugs required.

Utah is the only state to have used firing squads in the past 50 years, according to the Death Penalty Information Center. Idaho’s neighboring state executed Ronnie Lee Gardner in 2010 by firing squad. Mississippi, Oklahoma and South Carolina also permit use of the firing squad as an alternative to lethal injection.