The decision by Baltimore’s top prosecutor Marilyn Mosby to charge six police officers in the death of Freddie Gray is a welcome and important short term victory for Baltimore. But this is a long way from securing a conviction.

This year’s MLK Day comes in the wake of the explosive #BlackLivesMatter movement, organized by thousands of black youth and allies across the country engaging in direct actions, rallies, and marches challenging police brutality and the racist justice system.