At one point King was struck in the head by a fist-size rock. Shaken, he sank to one knee and remained dazed for several moments as the crowd chanted, “Kill him, kill him.” Then he rose and marched on. Timuel Black was just steps behind King when the rock struck him. As Black recounts, “I said to myself, ‘If one of them bricks hit me, the nonviolence movement is over.’ ” Chicago, August, 1966