Clearly you have not figured it out. Either the cop does something wrong or he does not. No one can videotape a cop doing something wrong if the cop does nothing wrong.
The other involved a young man an officer was attempting to complete a pat down on while handcuffed. The video showed the officer slamming the young man on the trunk of the police car. What the video didn't show was that the young man had grabbed the officer's crotch and squeezed, and the officer reacted in self-defense. The video was used against the officer. No entrappment involved here, now was there?/s
You, it appears, will always side against the police, while siding for the "perp", regardless of evidence. It isn't I who hasn't figured it out. Video can be manipulated. Video doesn't always show the whole story. You place too much stock in the use of video.