What boggles my mind is that they did that crap knowing they wore body cams. One person doing it, I'd chalk up to a mentally loose cannon. 5 of them? WTF were they thinking?
They were undisciplined and imo trying to one up each other in a game of machismo.
Also, the more archaic form of law enforcement that I mentioned earlier shows laziness and perhaps low intellect. It requires hard work and intelligence to make a case that will stick and result in a prosecution. It requires neither to beat someone's arse.