We begin tonight with three finalists for superintendent of the Boston Public Schools. Two candidates from other states and one from Boston are scheduled for interviews next week. One candidate is Marie Izquierdo, Chief Academic Officer for the Miami-Dade County Public Schools in Florida. A call to non-violent resistance by Doctor Martin Luther King, Junior found a chorus of new voices yesterday on City Hall Plaza.Organized by the Boston Mountaintop committee, local activists and officials took their turns reading King's open letter--composed in nineteen sixty-three, while he was jailed for civil disobedience in Birmingham, Alabama. Interview with Vernon K. Walker, Berachah Church.