Local activists Mara Jacqueline Willaford and Marissa Jenae Johnson brought Bernie Sanders' speech to a halt Aug. 8 during an anniversary celebration of Social Security and Medicare at Westlake Park. Willaford and Johnson interrupted the event to call attention to the Black Lives Matter movement and the anniversary of the death of Michael Brown who was shot by police in Ferguson, Missouri in 2014. Click for more photographs by Alex Gardland