FILE - In this Nov. 18, 2011 file photo, University of California, Davis Police Lt. John Pike uses pepper spray to move Occupy UC Davis protesters while blocking their exit from the school's quad in ... more 
FILE - In this Nov. 18, 2011 file photo, University of California, Davis Police Lt. John Pike uses pepper spray to move Occupy UC Davis protesters while blocking their exit from the school's quad in Davis, Calif. Annette Spicuzza, the police chief who oversaw the University of California, Davis, police department during the incident, on Wednesday, April 18, 2012 said that she is stepping down. (AP Photo/The Enterprise, Wayne Tilcock, File) less 
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Associated Press | Photo By The Enterprise, Wayne Tilcock, File
Wed, Apr 18, 2012 9:16 PM EDT