TERROR

Governor again activates Guard troops in Ferguson, ahead of grand jury decision in Brown case

  • A high school graduation photo of Michael Brown rests on top of a snow-covered memorial Monday, Nov. 17, 2014, more than three months after the black teen was shot and killed nearby by a white policeman in Ferguson, Mo. The shooting sparked weeks of violent protests and  Missouri Governor Jay Nixon declaring a state of emergency today as a grand jury deliberates on whether to charge Ferguson police officer Darren Wilson in the death. (AP Photo/St. Louis Post-Dispatch, Robert Cohen)  EDWARDSVILLE INTELLIGENCER OUT; THE ALTON TELEGRAPH OUT

    A high school graduation photo of Michael Brown rests on top of a snow-covered memorial Monday, Nov. 17, 2014, more than three months after the black teen was shot and killed nearby by a white policeman in Ferguson, Mo. The shooting sparked weeks of violent protests and Missouri Governor Jay Nixon declaring a state of emergency today as a grand jury deliberates on whether to charge Ferguson police officer Darren Wilson in the death. (AP Photo/St. Louis Post-Dispatch, Robert Cohen) EDWARDSVILLE INTELLIGENCER OUT; THE ALTON TELEGRAPH OUT  (The Associated Press)

  • A woman looks at a memorial in the middle of the street Monday, Nov. 17, 2014, more than three months after black teen Michael Brown was shot and killed there by a white policeman in Ferguson, Mo. The shooting sparked weeks of violent protests and  Missouri Governor Jay Nixon declaring a state of emergency today as a grand jury deliberates on whether to charge Ferguson police officer Darren Wilson in the death. (AP Photo/Charlie Riedel)

    A woman looks at a memorial in the middle of the street Monday, Nov. 17, 2014, more than three months after black teen Michael Brown was shot and killed there by a white policeman in Ferguson, Mo. The shooting sparked weeks of violent protests and Missouri Governor Jay Nixon declaring a state of emergency today as a grand jury deliberates on whether to charge Ferguson police officer Darren Wilson in the death. (AP Photo/Charlie Riedel)  (The Associated Press)

  • This photo shows a memorial in the middle of the street more than three months after black teen Michael Brown was shot and killed there by a white policeman Monday, Nov. 17, 2014, in Ferguson, Mo. The shooting sparked weeks of violent protests and the Missouri Governor declaring a state of emergency as a grand jury deliberates on whether to Ferguson police officer Darren Wilson in the shooting. (AP Photo/Charlie Riedel)

    This photo shows a memorial in the middle of the street more than three months after black teen Michael Brown was shot and killed there by a white policeman Monday, Nov. 17, 2014, in Ferguson, Mo. The shooting sparked weeks of violent protests and the Missouri Governor declaring a state of emergency as a grand jury deliberates on whether to Ferguson police officer Darren Wilson in the shooting. (AP Photo/Charlie Riedel)  (The Associated Press)

Missouri's governor has again activated the National Guard in an effort to avoid more unrest in the St. Louis suburb of Ferguson.

The announcement comes as a grand jury weighs criminal charges against Darren Wilson, the white police officer who fatally shot Michael Brown. Gov. Jay Nixon gave no indication that an announcement is imminent. The prosecutor expects a decision this month.

In August, Nixon asked the troops to help quell the sometimes-violent protests that occurred nightly following the black 18-year-old's death.

There also are some operational differences this time. The St. Louis County Police Department will be in charge of security in Ferguson, working with the Highway Patrol and St. Louis city police as part of a unified command.