Source: https://abcnews.go.com/Entertainment/fall-rodney-king-juror-...
> "But I assumed that the videotape showed everything that had happened. I was amazed to discover how much more of it existed than had been shown on television. The whole tape was only eighty-one seconds, but even so, only a small portion of that eighty-one seconds had been shown on television. The whole tape, seen in context, presented a far different scenario than what the public had seen."
Source: https://laist.com/2017/04/25/rodney_king_jury.php
It's a shame they were acquitted, but our culture of violence runs deep, and our [low] expectations reflect that. It's not surprising that the jurors considered the brutality justified.