Protests in Chicago are ongoing as the investigation into police officer Jason Van Dyke's fatal shooting of 17-year-old Laquan McDonald continues.
Shortly after arriving in Paris, U.S. President Barack Obama visits the memorial at the Bataclan concert hall to pay tribute to the victims of the deadly Paris attacks. Rough Cut (no reporter narration).
Scientists have identified a Grandparent Gene that may protect the elderly from dementia and Alzheimer's. TC Newman (@PurpleTCNewman) has details.