A sign with a picture of a pepper spray canister is posted on a tree during a demonstration at UC Davis Monday. (Justin Sullivan / Getty Images)
UC Chancellor Linda P.B. Katehi is escorted from the stage after she spoke during a protest rally at the school on Monday, apologizing for campus police officers’ use of pepper spray against peaceful demonstrators. (Paul Sakuma / Associated Press)
A protester pumps her fist during a demonstration at the UC Davis campus on Monday. Thousands of Occupy protesters staged a demonstration on the campus after UC Davis police pepper-sprayed students who sat with their arms locked during an Occupy demonstration on Friday. (Justin Sullivan / Getty Images)
