St. Louis police Lt. Timothy Sachs says he could see protesters meant trouble because they were wearing goggles, masks and backpacks.This was hours before police corralled and arrested 123 people downtown on the night of September 17, a now infamous incident known as the "kettle." Protests were in their third night following the acquittal of ex-city cop Jason Stockley on charges he murdered Anthony Lamar Smith.
Sachs, who oversees the department's Civil Disobedience Team or "riot police," testified during a federal hearing on Thursday there had been vandalism earlier in the evening — broken windows, overturned flower pots, furniture dragged into the street.…