Her resignation comes after a wave of courtroom losses.
"That's up to the prosecutor," the mayor said.
Videographer Mary Moore is among more than two dozen news professionals arrested covering protests since the police killing of teenager Michael Brown.
But residents are still upset about the city not signing an agreement with the Department of Justice.
Peinado called Karr “aggressive,” and said this week's three trials were a waste of her time. “You couldn’t walk out of the
The conduct of officers has come under scrutiny as they police protests following the shooting death of 18-year-old Michael