 They held a brief prayer service and headed south. Fifty yards up ahead, at the crest of a modest hill, stood several Mississippi Highway patrolmen. As the group approached, an officer, L.Y. Griffin, shouted, "'Stay off the pavement!' Reporters watched quietly. Dr. King stopped, almost as though he were surprised, and then said, "'It's your duty to give us protection!' "'Off the pavement!' Griffin shouted, and several patrolmen moved toward King and the others at the head of the column. Carmichael, Sellers, McKissick, and the SCLC education director, Robert L. Green."