A black caregiver shot by police in the leg while trying to help his patient. Another black man shot and killed after officers pin him to the ground. A black school employee shot in the car, while his wife and child are forced to witness the killing. Cases like this grab attention day after day, fueling a massive uproar against police brutality and indiscriminate killings of unarmed black civilians. The Black Lives Matter movement has turned into one of the most powerful voices in America. How big is its impact on US politics and society? We ask a woman who was at the origins of the movement - Pan-African Studies Professor at the California State University, Black Lives Matter organizer in LA Dr. Melina Abdullah on Sophie&Co today.