Black Friday and shopping Saturday was bleaker for some shoppers as demonstrators marched, shouted and sometimes confronted store employees and owners over the Nov. 28 weekend. Most of the time shops started to lock doors, pull down shutters and activate gates as soon as the chanting started. Young people, primarily Black but with some White and older participants, strode through malls and stores with their hands up and sometimes holding signs. “Black lives matter!” they shouted.