article_snippet.sent: Jeffrey Williams, 20, is accused of shooting and wounding the officers on during a rally on March 12 .
article_snippet.sent: Jeffrey Williams, 20, is accused of shooting and wounding the officers on March 12, during an early-morning rally sparked by the resignation of Ferguson's police chief.
highlights_snippet.sent: Jeffrey Williams, 20, is accused of shooting and wounding the officers on during a rally on March 12 .
  