The murders were committed by the Panthers and their even more extreme offshoot, Black Liberation Army. If the words, "Black Liberation", sound familiar, think Obama and his "spiritual advisor", , so-called, 'reverend', Jeremiah Wright (Black Liberation Theology). Same basic crap, but pushed through a bogus religion. BLT's predecessor, Liberation Theology, was a concoction of the Soviet KGB.
K=Jeremiah Wright was the white ‘Stepin Fetchit’