unrest in two major cities, as hundreds of protesters returned to the streets. new york city police department. [ bleep ]. reporter: from chicago to new york, demonstrators marching in frustration, over the shocking death of 17-year-old laquan mcdonald. violation of new york state penal law. reporter: police arresting several protesters in new york city. their passion spilling into the macy s flagship department store, in the heart of manhattan voices raging. in chicago, demonstrators stage a sit-in blocking a major intersection. some trying to take police officers bikes. reporter: this, as newly released dash cam video, obtained by the chicago tribune, captured the moment before and after 37-year-old jason van dyke shot mcdonald 16 times last october. this is officer van dyke s own vehicle dash cam, while out of