Protester Derrick Robinson shouts through a bullhorn at police officers standing guard during a demonstration outside the Ferguson Police Department, Sunday, Nov. 23, 2014, in Ferguson, Mo. Ferguson and the St. Louis region are on edge in anticipation of the announcement by a grand jury whether to criminally charge Officer Darren Wilson in the killing of 18-year-old Michael Brown. (AP Photo/David Goldman)

Photos: The mood in Ferguson, Missouri

CNN, citing U.S. and local law enforcement officials it did not identify, said the St. Louis County prosecutor would announce a grand jury’s…