One of the most commented topics on the news this week was 2 separate incidents where Black men were shot in what appears to be an excessive use of force by the police. Unfortunately, these types of incidents have been a constant in recent years, and which have led to the creation of Black Lives Matter, "an international activist movement, originating in the African-American community, that campaigns against violence toward black people"
The Guardian newspaper has a very interesting section that tracks the total number of people killed in fatal shootings by the police in the US both in total and per million inhabitants. Using this data, it is clear that people from the Black race proportionally died more frequently in those incidents than any other race in 2015 (and next to Native Americans in 2016).
If you read the numbers, you will see the movement definitely has a point.