Chicago officials released the graphic dash cam video of a white police officer fatally shooting a black teenager. The disturbing video shows 17-year-old Laquan McDonald being shot 16 times by Officer Jason Van Dyke in October 2014. The video shows the teen walking through the street reportedly holding a 3-inch knife, before he is shot and falls to the ground. The veteran Chicago police officer has been charged with first-degree murder in the death of a black teen.