The news comes more than a month after Eric Garner died.
The attorney general, set to arrive in Ferguson on Wednesday, delivered a message to residents.
The National Guard's goal in Ferguson is to protect the law enforcement command center.
Experts explain how it works when multiple autopsies are carried out.
Prosecutors will begin presenting evidence to a St. Louis County grand jury.
This is at least the third time city leaders have asked residents to head home before the sun sets.
The scene in Ferguson once night falls is a familiar one.
Here are the latest updates on what is happening in Ferguson.
The St. Louis Post-Dispatch's front page has been dominated by news about the unrest and the police response.
The notice was issued at the request of Gov. Jay Nixon.