Photo: James T. Root

Photo: Svellen Bilow. May 19. mid-afternoon Sproul Plaza. "Shortly after, snakelike formation of cops disperse crowd with tear gas canisters (mostly photographers and oblivious frisbee throwers)"

Photo: Dick Corten

Photo: Andrew R. Scott. May 20. 2:05 pm. from top of Eshleman Hall. "helicopter attack with no warning "