NASHVILLE — Death row inmate Sedley Alley received a stay of execution Thursday from a federal judge. Alley was scheduled to be put to death by lethal injection on Wednesday for the 1985 rape and murder of 19-year-old Marine Lance Cpl. Suzanne M. Collins at the Millington Naval Air Station outside Memphis. Federal Judge Aleta Traugher issued the stay because for Alley, who is challenging the state’s lethal injection procedure. A ruling on whether the drugs used in lethal injection violate the constitutional ban on cruel and unusual punishment is pending in the U.S. Supreme Court.