like this also make the case for dash cams and body cams in police departments all over the country so there is no question? >> it certainly does make the case, but ironically, it also suggests that even when you have cameras in place, justice does not necessarily occur siftlwift. i watched this tape with you, errol, and it looks pretty simple. the man was down on the ground, shots were fired into him. i shouldn't say man. he was only 17 years old. he doesn't threatening the officer when the shots were fired. the final shots were fired. so that's not a complex fact pattern. for it to take this long to reach a decision about whether a crime was committed and what specifically to charge is surprising. >> and this incident took place last year. since then we've seen multiple dash cam videos of police using accessive force when it comes to unarmed black men specifically.